Cyanide Or Isocyanide Patents (Class 436/109)
  • Patent number: 10054574
    Abstract: A reaction carrier (14), a measuring device (12) and a measuring method measure a concentration of gaseous/aerosol components of a gas mixture. The reaction carrier (14) has a flow channel (42) defining a reaction chamber (46) with an optically detectable reaction material (48) reacts with at least one component of the gas mixture or with a reaction product of the component. A humidity measuring element (84), of the reaction carrier (14), detects a humidity of the gas mixture flowing through the flow channel (42). The measuring device (12) has a humidity detection unit (85) that reads the humidity measuring element (84). A humidity determining unit (94) determines a humidity based on the detected humidity. The measuring method determines a humidity of the supplied gas mixture in the flow channel (42) and determines a concentration of the component on the basis of the optically detectable reaction and the measured humidity.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: August 21, 2018
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Hans-Ullrich Hansmann, Philipp Rostalski
  • Patent number: 9023652
    Abstract: The present invention relates to detectors for detecting fluorine-containing compounds and/or cyanide containing compounds, including hydrogen fluoride (HF) or HCN gas, hydrofluoric acid in solution, selected chemical warfare agents, selected industrial chemicals which may be hydrolyzed to release HF or HCN gas, compounds containing a cyanide group, and compounds that can release HF or HCN. The detectors comprise i) an organometallic component containing at least one bis-substituted boryl group of the formula —B(RB)(RB?) wherein each RB and each RB? is independently selected from H, halogen, C1-6 alkyl, OR6, N(R6)(R7), SR6, C3-20 aryl or heteroaryl, and C3-20 cycloalkyl or heterocycloalkyl groups, each of which may be optionally substituted, ii) a Lewis base component, and iii) a solid matrix component.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: May 5, 2015
    Assignee: University College Cardiff Consultants Ltd.
    Inventors: Simon Aldridge, Ian A. Fallis
  • Publication number: 20150065365
    Abstract: An apparatus is provided for sensing an analyte in a fluid.
    Type: Application
    Filed: May 12, 2014
    Publication date: March 5, 2015
    Applicant: Invoy Technologies, L.L.C
    Inventor: Lubna Ahmad
  • Patent number: 8969095
    Abstract: The present invention is directed to methods and systems for detecting the presence of explosive elements. A sample element may be used to swipe an object for a test sample. The sample element may be positioned in a sample holder of a testing device having a heater. The heater may be programmed to heat the sample element and sample in a controlled manner through two or three temperature increases from approximately 35 degrees to 165 degrees centigrade in approximately 40 seconds. Prior to each temperature increase a first, second and third reagent fluid is applied to the sample holder, and during the temperature rise the sample holder is observed for the presence of various explosive elements by detecting colors as compared to a color chart. The color observations may be based on time and temperature variations using a testing device.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: March 3, 2015
    Inventor: Jeffery S. Haas
  • Publication number: 20150037900
    Abstract: A device, method, and test kit for rapidly detecting cyanide in a sample. The inventive device comprises a container comprising a sample chamber and a sensor chamber separated by a selectively permeable barrier. The sample chamber contains a reagent for releasing cyanide from the sample, and the sensor chamber contains a cyanide detector comprising a conductive polymer which absorbs the released cyanide, generating a change in signal. Signals can be viewed colorimetrically or transmitted to a LCD/LED panel wherein the cyanide measurement readout is displayed.
    Type: Application
    Filed: October 16, 2014
    Publication date: February 5, 2015
    Inventor: Joseph Rella
  • Patent number: 8900873
    Abstract: The invention relates to a method for continuously determining the concentration of at least one CN compound in an aqueous solution, wherein a carrier gas, for example compressed air, is introduced into the aqueous solution and the introduced carrier gas is fed at least partially to a gas analyzer, for example an HCN gas analyzer, the analysis data of which are considered in the determination of the concentration of the CN compound in the aqueous solution. In order to create advantageous method conditions, the temperature of the aqueous solution exposed to carrier gas is considered in the determination of the concentration of the CN compound.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: December 2, 2014
    Assignee: Voestalpine Stahl GmbH
    Inventors: Franz Parzermair, Leopold Moser, Manfred Naderer
  • Publication number: 20140302612
    Abstract: A method of detecting an analyte by: providing a device having a substrate, an alignment layer on the substrate, and a film having 4-pentyl-4?-cyanobiphenyl on the alignment layer; exposing the film to air suspected of containing the analyte; measuring a change in a physical property of the film in response to exposing the film; measuring the kinetics of the change in the physical property; and correlating the kinetics to the concentration of the analyte, identification of the analyte, or both.
    Type: Application
    Filed: June 23, 2014
    Publication date: October 9, 2014
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventor: Devanand K. Shenoy
  • Patent number: 8828733
    Abstract: The compositions and methods relate to an organic polymer-inorganic particle sensor material for detecting analytes. Interactions between the polymer and the particles are affected by the presence of analyte, which displaces the polymer and increases its free volume. This change in free volume can be detected, e.g., using an embedded piezoresistive microcantilever (EPM) sensor. Analytes that can be detected include noxious substances, such as hydrogen cyanide gas and carbon monoxide.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: September 9, 2014
    Assignees: Cantimer, Inc., Arizona Board Of Regents For And On Behalf Of Northern Arizona University
    Inventors: Timothy L. Porter, Ray Stewart, Timothy L. Vail
  • Patent number: 8809067
    Abstract: The present invention provides highly fluorescent markers, made from a reactive polymer and an isocyanate, that fluoresce in the ultraviolet or near infrared region without being visible to the human eye at low concentrations in the fluid or article being marked. The molecular weight and fluorescence emission wavelength of these highly fluorescent marker compounds can be adjusted to provide a multitude of markers with unique fluorescence signatures.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: August 19, 2014
    Assignee: Bayer MaterialScience LLC
    Inventor: George G. Combs
  • Patent number: 8741658
    Abstract: A method and devices analyze for the presence of cyanide in samples using colorimetric analysis of samples after contacting with cobinamide or monocyanocohinapmide.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: June 3, 2014
    Assignees: The Regents of the University of California, Board of Regents, The University of Texas System
    Inventors: Gerry Boss, Vijay Sharma, Matthew Brenner, Purnendu K. Dasgupta, William Curt Blackledge
  • Publication number: 20140141522
    Abstract: A method for selective detection of cyanide in a sample comprises determining a color change of a corrinoid compound caused upon contact with the sample. A high detection sensitivity and selectivity are achieved by having the corrinoid compound adsorbed on a solid phase. This general principle is applied in a kit for selective detection of cyanide and to uses thereof. One application consists in a device for removing hydrogen cyanide from a gaseous phase, e.g. tobacco smoke.
    Type: Application
    Filed: April 5, 2012
    Publication date: May 22, 2014
    Applicant: UNIVERSITAET ZUERICH PROREKTORAT MNW
    Inventors: Felix Zelder, Christine Männel-Croisé
  • Publication number: 20140024128
    Abstract: A method of detecting nitrogen compound emissions in exhaust gases treated with selective catalytic reduction achieved by injecting a reducing agent into the gases and by passing these gases through a catalyst include sending the signal collected by a gas detector arranged in the exhaust gas downstream from the catalyst and representative of the amount of NOx (NOxsonde) at the catalyst outlet to a computing unit, decomposing this signal into a value representative of the effective NOx amount (NOxréel) at the outlet of catalyst established by the SCR catalyst model, into a detector perturbation coefficient (k) and into a value representative of the ammonia amount (NH3réel) via an integrated model so as to obtain NOxsonde=NOxréel+k.NH3réel, evaluating coefficient (k) from this decomposition, and determining the presence of nitrogen compounds downstream from catalyst (16) when coefficient (k) is greater than or equal to 1.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 23, 2014
    Inventor: Arnaud FROBERT
  • Patent number: 8609428
    Abstract: The invention relates to an assay to test for pyrethroids in a sample. The assay is particularly useful for testing material treated with pyrethroids, such as bed netting and the like.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: December 17, 2013
    Assignee: London School of Hygiene & Tropical Medicine
    Inventors: Harparkash Kaur, Teunis Eggelte
  • Patent number: 8603830
    Abstract: The present invention relates to a method for the determination of polysorbate in a protein-containing sample. The method of the present invention involves the pretreatment of the sample by alkaline hydrolysis followed by colorimetric determination.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: December 10, 2013
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Alfred Weber, Andrea Engelmaier, Heinz Anderle, Hans-Peter Schwarz
  • Patent number: 8580573
    Abstract: The present invention provides highly fluorescent markers, made from a reactive polymer and an isocyanate, that fluoresce in the ultraviolet or near infrared region without being visible to the human eye at low concentrations in the fluid or article being marked. The molecular weight and fluorescence emission wavelength of these highly fluorescent marker compounds can be adjusted to provide a multitude of markers with unique fluorescence signatures.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: November 12, 2013
    Assignee: Bayer MaterialScience LLC
    Inventor: George G. Combs
  • Patent number: 8513022
    Abstract: A method for determining the amount of a chemical species in a sample, in particular the amount of weak acid dissociable cyanide or total cyanide in a sample, and an apparatus for performing said method. The method comprises the steps of: i) treating the sample to liberate the chemical species into a gaseous stream; ii) directing the gaseous stream to a scrubber; iii) absorbing the chemical species into a scrubber solution; and iv) determining the amount of chemical species absorbed into the scrubber solution, wherein any remaining chemical species not absorbed into the scrubber solution is directed or recirculated to the scrubber in the gaseous stream and step iii) is repeated to increase absorption of the chemical species prior to performing step iv).
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: August 20, 2013
    Assignee: Cyantific Instruments Pty Ltd
    Inventor: Fraser John Ross
  • Publication number: 20130203178
    Abstract: The method for detection of cyanide in water is a method for the detection of a highly toxic pollutant, cyanide, in water using ZnO2 nanoparticles synthesized locally by an elegant Pulsed Laser Ablation technique. ZnO2 nanoparticles having a median size of 4 nm are synthesized from pure zinc metal target under UV laser irradiation in a 1-10% H2O2 environment in deionized water. The synthesized ZnO2 nanoparticles are suspended in dimethyl formamide in the presence of Nafion, and then ultrasonicated to create a homogenous suspension, which is used to prepare a thin film of ZnO2 nanoparticles on a metal electrode. The electrode is used for cyanide detection.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 8, 2013
    Inventors: MOHAMMED ASHRAF GONDAL, QASEM AHMED QASEM DRMOSH, Z.H. YAMANI, TAWFIK ABDO SALEH
  • Patent number: 8486711
    Abstract: The present invention provides highly fluorescent markers, made from a reactive polymer and an isocyanate, that fluoresce in the ultraviolet or near infrared region without being visible to the human eye at low concentrations in the fluid or article being marked. The molecular weight and fluorescence emission wavelength of these highly fluorescent marker compounds can be adjusted to provide a multitude of markers with unique fluorescence signatures.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: July 16, 2013
    Assignee: Bayer MaterialScience LLC
    Inventor: George G. Combs
  • Patent number: 8377704
    Abstract: Provided herein are methods of detecting anions in solution. In particular, the methods can be used to detect trace anions in solution. For example, the anions can be present in an amount of between about 500 femtomoles to about 10 millimoles.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: February 19, 2013
    Assignee: NUtech Ventures
    Inventors: Stephen DiMagno, Ronald Cerny
  • Patent number: 8372649
    Abstract: The present invention describes the development of a end-capped bipyridine compound having formula A and the zinc complex having formula B. The assay having formula 1 can be used to estimate and quantify the amount of zinc ions by monitoring the fluorescence changes. The assay with formula 1 can be use to image and detect Zn2+ ions in MCF7 cell lines. The zinc complex of formula 2 and 4 can be used as a fluorescent sensor for cyanide anions using analyte replacement protocol. The assay with formula 2 is selective only to cyanide anions even in the presence of other competing anions. The assay with formula 3 having bright green solid state emission is used for the preparation of formula 4. The orange fluorescent powder of assay with formula 4 is used for the selective detection of CN? ions in aqueous solution.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: February 12, 2013
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ajayaghosh Ayyapanpillai, Sreejith Sivaramapanicker, Divya P Kizhumuri, Jayamurthy Purushothaman
  • Publication number: 20130005044
    Abstract: A method and devices analyze for the presence of cyanide in samples using colorimetric analysis of samples after contacting with cobinamide or monocyanocohinapmide.
    Type: Application
    Filed: March 15, 2011
    Publication date: January 3, 2013
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Gerry Boss, Vijay Sharma, Matthew Brenner, Pernendu K. Dasgupta, William Curt Blackledge
  • Publication number: 20120231547
    Abstract: The present invention describes the development of a end-capped bipyridine compound having formula A and the zinc complex having formula B. The assay having formula 1 can be used to estimate and quantify the amount of zinc ions by monitoring the fluorescence changes. The assay with formula 1 can be use to image and detect Zn2+ ions in MCF7 cell lines. The zinc complex of formula 2 and 4 can be used as a fluorescent sensor for cyanide anions using analyte replacement protocol. The assay with formula 2 is selective only to cyanide anions even in the presence of other competing anions. The assay with formula 3 having bright green solid state emission is used for the preparation of formula 4. The orange fluorescent powder of assay with formula 4 is used for the selective detection of CN? ions in aqueous solution.
    Type: Application
    Filed: March 15, 2012
    Publication date: September 13, 2012
    Inventors: Ajayaghosh Ayyapanpillai, Sreejith Sivaramapanicker, Divya P Kizhumuri, Jayamurthy Purushothaman
  • Publication number: 20120171713
    Abstract: A semiconductor die includes a chemical sensor, a digital to analog converter, and microcontroller formed therein. The chemical sensor detects the presence of a chemical and outputs an analog signal to the digital to analog converter. The analog to digital converter converts the analog signal to a digital signal. The analog to digital converter outputs the digital signal to the microcontroller. Microcontroller calculates a value of the concentration of the selected chemical.
    Type: Application
    Filed: October 31, 2011
    Publication date: July 5, 2012
    Applicant: STMICROELECTRONICS PTE LTD.
    Inventors: Suman Cherian, Olivier Le Neel
  • Publication number: 20120164738
    Abstract: The invention relates to methods and compositions for the rapid detection of small ligands, such as cyanide, carbon monoxide or azide, in small quantities. Specifically, metmyoglobin is used to bind small ligands which yield a product with a characteristic absorbance spectrum that is detectable and quantifiable. Also disclosed is a kit for detecting small ligands with metmyoglobin, which is portable and provides for practice of the invention without the use of harsh solvents or chemical reagents.
    Type: Application
    Filed: May 5, 2008
    Publication date: June 28, 2012
    Applicant: U.S. ARMY MEDICAL RESEARCH AND MATERIEL COMMAND
    Inventors: James B. Kelly, Fred M. Hawkridge, Steven I. Baskin, Matthew G. Clark, Scott Willens
  • Patent number: 8198436
    Abstract: A chromogenic oxazine compound for the colorimetric detection of cyanide was designed. Indeed, the [1,3]oxazine ring of our compound opens to form a phenolate chromophore in response to cyanide. The heterocyclic com-pound may be comprised of fused benzooxazine and indoline rings: wherein R1 is an alkyl (e.g., methyl, ethyl, propyl, isopropyl, butyl, isobutyl), a substituted alkyl, a cycloalkyl (e.g., cyclopentyl, cyclohexyl), a substituted cycloalkyl, an aryl (e.g., phenyl), or a substituted aryl and R2 is a chromophore (e.g., nitroso, nitro, azo dyes). This quantitative chromogenic transformation permits the detection of micromolar concentrations of cyanide in water. Furthermore, our chromogenic oxazine is insensitive to the presence of large concentrations of fluoride, chloride, bromide or iodide anions, which are generally the principal interferents in the colorimetric detection of cyanide.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: June 12, 2012
    Assignee: The University of Miami
    Inventors: Francisco M. Raymo, Massimiliano Tomasulo
  • Publication number: 20110300567
    Abstract: A method for identifying the redox activity of a subject compound is disclosed. The method can be performed aerobically and can include forming a mixture comprising a free-radical precursor and a compound to be tested, and converting the free-radical precursor into a free-radical anion and a free-radical cation. After the free radical cation and the free radical anion have been formed, the relative redox activity of the subject compound may cause a difference in the rate of photo-bleaching of the mixture and/or the rate of superoxide generation. These differences can be quantified and used to identify the redox activity of the subject compound. This sensitive technique for measuring redox activity can be used to screen compounds for various biological applications. Drugs also can be developed based on the relationship between redox activity and biological activity for particular biological applications.
    Type: Application
    Filed: August 9, 2011
    Publication date: December 8, 2011
    Inventors: Jonathan J. Abramson, Benjamin S. Marinov
  • Publication number: 20110287551
    Abstract: A sensor made from a metal salt film, formed on a set of monitoring electrodes, by evaporation of a metal salt aqueous solution disposed on the electrodes, is used for detecting a weak acid. Low concentrations of the weak acid, such as ten ppm, are indicated as the conductivity of the film changes by several orders of magnitude, as a result of reaction of the weak acid with the metal salt, as the metal salt converts to a metal reaction product upon exposure to the weak acid.
    Type: Application
    Filed: July 27, 2011
    Publication date: November 24, 2011
    Inventors: Bruce H. Weiller, Richard B. Kaner, Shabnam Virji
  • Publication number: 20110281367
    Abstract: The invention relates to a device (10) for detection of harmful substances with a measurement unit (28) for measuring at least one harmful substance and an evaluation unit (30) for determining the concentration of the at least one harmful substance. The invention also relates to a method for detecting harmful substances in a gas mixture. It is hereby provided that the gas mixture is tested for a gaseous harmful substance or simultaneously for several gaseous harmful substances, wherein the gaseous harmful substance or the gaseous harmful substances is/are measured with different sensor means, and the gaseous harmful substances are optionally chemically modified such that a measurement is performed with the existing sensor means.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 17, 2011
    Applicant: Airsense Analytics GmbH
    Inventors: Andreas WALTE, Wolf MÜNCHMEYER
  • Patent number: 8034624
    Abstract: A sampling device for analysis of a substance which is chosen from the group consisting of isocyanates, aminoisocyanates, amines, and isothiocyanates, and which is present in an air flow intended to pass through the sampling device is disclosed, as well as a method for the production of said sampling device, and a method for the analysis of said substance in the air flow.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: October 11, 2011
    Assignee: Provtagaren AB
    Inventors: Gunnar Skarping, Marianne Dalene
  • Publication number: 20110244585
    Abstract: A device is disclosed for detecting at least one chemical compound comprising at least one carbon nanotube with several graphene layers, on which is grafted at least one molecule bearing group G1 capable of reacting with the chemical compound or a precursor of such a group G1. The uses and the method of making such a device is also disclosed.
    Type: Application
    Filed: September 28, 2009
    Publication date: October 6, 2011
    Applicant: Commissariat a l'energie atomique et aux energies alternatives
    Inventors: Martine Mayne-L'Hermite, Serge Palacin, Pascale Chenevier, Jérôme Chancolon, Aurélien Gohier
  • Publication number: 20110244584
    Abstract: The present invention provides a system comprising an array of chemically sensitive sensors based on coated single walled carbon nanotubes, for measuring volatile organic compounds indicative of renal failure. Methods of breath analysis for diagnosing chronic, acute and end-stage renal failure are disclosed.
    Type: Application
    Filed: December 2, 2009
    Publication date: October 6, 2011
    Applicant: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LTD.
    Inventors: Hossam Haick, Zaid Abassi, Farid Nakhoul
  • Publication number: 20110039347
    Abstract: A method for determining the amount of a chemical species in a sample, in particular the amount of weak acid dissociable cyanide or total cyanide in a sample, and an apparatus for performing said method. The method comprises the steps of: i) treating the sample to liberate the chemical species into a gaseous stream; ii) directing the gaseous stream to a scrubber; iii) absorbing the chemical species into a scrubber solution; and iv) determining the amount of chemical species absorbed into the scrubber solution, wherein any remaining chemical species not absorbed into the scrubber solution is directed or recirculated to the scrubber in the gaseous stream and step iii) is repeated to increase absorption of the chemical species prior to performing step iv).
    Type: Application
    Filed: December 18, 2008
    Publication date: February 17, 2011
    Applicant: CYANTIFIC INSTRUMENTS PTY LTD
    Inventor: Fraser John Ross
  • Patent number: 7868409
    Abstract: A semiconductor integrated circuit which is connected to a substrate by solder bumps wherein, when at least one solder bump is connected to a signal line of the semiconductor integrated circuit and the semiconductor integrated circuit is mounted on the substrate, the semiconductor integrated circuit is bonded to the substrate by the solder bump, and the interconnection to the substrate is made by dummy bumps forming wires at the substrate side.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: January 11, 2011
    Assignee: Fujitsu Limited
    Inventor: Takao Sasaki
  • Publication number: 20100285602
    Abstract: The present invention relates to detectors for detecting fluorine-containing compounds and/or cyanide containing compounds, including hydrogen fluoride (HF) or HCN gas, hydrofluoric acid in solution, selected chemical warfare agents, selected industrial chemicals which may be hydrolysed to release HF or HCN gas, compounds containing a cyanide group, and compounds that can release HF or HCN. The detectors comprise i) an organometallic component containing at least one bis-substituted boryl group of the formula —B(RB)(RB+) wherein each RB and each RB? is independently selected from H, halogen, C1-6 alkyl, OR6, N(R6)(R7), SR6, C3-20 aryl or heteroaryl, and C3-20 cycloalkyl or heterocycloalkyl groups, each of which may be optionally substituted, ii) a Lewis base component, and iii) a solid matrix component.
    Type: Application
    Filed: December 21, 2007
    Publication date: November 11, 2010
    Applicant: UNIVERSITY COLLEGE CARDIFF CONSULTANTS LTD.
    Inventors: Simon Aldridge, Ian A. Fallis
  • Publication number: 20100203648
    Abstract: The compositions and methods relate to an organic polymer-inorganic particle sensor material for detecting analytes. Interactions between the polymer and the particles are affected by the presence of analyte, which displaces the polymer and increases its free volume. This change in free volume can be detected, e.g., using an embedded piezoresistive microcantilever (EPM) sensor. Analytes that can be detected include noxious substances, such as hydrogen cyanide gas and carbon monoxide.
    Type: Application
    Filed: January 18, 2008
    Publication date: August 12, 2010
    Inventors: Timothy L. Porter, Ray Stewart, Timothy L. Vail, Michael P. Eastman
  • Patent number: 7732215
    Abstract: The present invention relates to a cyanide detection method using fluorescence and cyanide sensitive boronic acid containing fluorophores, wherein a change in a measured fluorescent property correlates to the concentration of the cyanide compound in a biological or environmental test sample.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: June 8, 2010
    Assignee: University of Maryland Biotechnology Institute
    Inventors: Chris D. Geddes, Ramachandram Badugu, Joseph R. Lakowicz
  • Patent number: 7700045
    Abstract: A sampling device is described for analysis of a substance, wherein the substance is selected from the group consisting of isocyanates, aminoisocyanates, isothiocyanates, anhydrides, amines and carboxylic acids and can be present in both gas and particle phases in an air flow passed, for sampling, through the sampling device, said device comprising: a) an adsorption device comprising a coating, wherein said coating comprises a reagent mixture in the form of one or more primary or secondary amines and an acidic compound having the ability to form a salt (or ionic bond) with the amine(s) for adsorption of and reaction with the substance in the gas phase of the air flow; and b) a filter device comprising said mixture of amine(s) and acidic compound for adsorption of and reaction with the substance in the particle phase of the air flow.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: April 20, 2010
    Assignee: Provtagaren AB
    Inventors: Gunnar Skarping, Marianne Dalene
  • Patent number: 7670842
    Abstract: The present invention provides a method for discriminating an organic farmland from a conventional farmland, comprising; (a) measuring an amount of nitrogen isotope in a soil sample of a farmland; (b) calculating a nitrogen isotope index according to the formula (I) using the resultant nitrogen isotope value and (c) determining whether the farmland belongs to an organic farmland or a conventional farmland. According to the present invention, it is possible to objectively discriminate an organic farmland from a conventional farmland or discriminate an organic crop from a conventional crop.
    Type: Grant
    Filed: April 12, 2003
    Date of Patent: March 2, 2010
    Inventors: Hee Myong Ro, Woo Jung Choi
  • Patent number: 7662635
    Abstract: A device and method in which the gas specimen to be investigated is exposed to one or more indicators for qualitative or quantitative detection of methylisothiocyanate, characterized in that at least one indicator is palladium sulfate.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: February 16, 2010
    Assignee: Dräger Safety AG & Co. KGaA
    Inventors: Silke Guga, Andreas Mohrmann
  • Patent number: 7662634
    Abstract: The invention relates to a method for determining the isomer composition in an isocyanate isomer mixture, wherein a spectrum of the isomer mixture is recorded and the spectrum is entered into a chemometric calibration model.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: February 16, 2010
    Assignee: Bayer MaterialScience AG
    Inventors: Jochen Mahrenholtz, Andrea Wimschneider, Hans-Georg Pirkl, Heinz-Herbert Müller, Stefan Dresely, Jeffrey Bolton, Martin Schiffhauer, Udo Wolf, Johannes Schweer, Martin Gerlach
  • Publication number: 20090258429
    Abstract: A chromogenic oxazine compound for the colorimetric detection of cyanide was designed. Indeed, the [1,3]oxazine ring of our compound opens to form a phenolate chromophore in response to cyanide. The heterocyclic com-pound may be comprised of fused benzooxazine and indoline rings: wherein R1 is an alkyl (e.g., methyl, ethyl, propyl, isopropyl, butyl, isobutyl), a substituted alkyl, a cycloalkyl (e.g., cyclopentyl, cyclohexyl), a substituted cycloalkyl, an aryl (e.g., phenyl), or a substituted aryl and R2 is a chromophore (e.g., nitroso, nitro, azo dyes). This quantitative chromogenic transformation permits the detection of micromolar concentrations of cyanide in water. Furthermore, our chromogenic oxazine is insensitive to the presence of large concentrations of fluoride, chloride, bromide or iodide anions, which are generally the principal interferents in the colorimetric detection of cyanide.
    Type: Application
    Filed: September 1, 2006
    Publication date: October 15, 2009
    Inventors: Francisco M. Raymo, Massimiliano Tomasulo
  • Publication number: 20090215189
    Abstract: The present invention generally relates to emissive materials, devices, and related methods. In some cases, the present invention provides sensors and methods for the determination of analytes, wherein the analytes may be determined by monitoring, for example, a change in an optical signal of an emissive material upon exposure to an analyte. The analyte and the emissive material may interact via a chemical reaction, such as an oxidative addition reaction, or other chemical, biochemical or biological interaction (e.g., recognition), to form a new emissive species. In some cases, the present invention may be useful in the detection of a wide variety of analytes, such as toxins, chemical warfare agents, and explosives. The present invention also provides emissive compounds, and related methods, including metal complexes that are capable of interacting with an analyte to produce a change in the emission of the compound.
    Type: Application
    Filed: October 27, 2006
    Publication date: August 27, 2009
    Applicant: Massachusetts Institute of Technology
    Inventors: Timothy M. Swager, Samuel W. Thomas, Koushik Vankatesan
  • Publication number: 20090117663
    Abstract: A sampling device for analysis of a substance which is chosen from the group consisting of isocyanates, aminoisocyanates, amines, and isothiocyanates, and which is present in an air flow intended to pass through the sampling device is disclosed, as well as a method for the production of said sampling device, and a method for the analysis of said substance in the air flow.
    Type: Application
    Filed: May 8, 2007
    Publication date: May 7, 2009
    Inventors: Gunnar Skarping, Marianne Dalene
  • Patent number: 7485470
    Abstract: A method for the efficient immobilization of silylated molecules such as silylated oligonucleotides or proteins onto unmodified surfaces such as a glass surface is provided. Also provided are compounds, devices, and kits for modifying surfaces such as glass surfaces.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: February 3, 2009
    Assignee: Nanosphere, Inc.
    Inventors: Viswanadham Garimella, Yasmith Bernal
  • Patent number: 7485469
    Abstract: A method for the efficient immobilization of silylated molecules such as silylated oligonucleotides or proteins onto unmodified surfaces such as a glass surface is provided. Also provided are compounds, devices, and kits for modifying surfaces such as glass surfaces.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: February 3, 2009
    Assignee: Nanosphere. Inc.
    Inventors: Viswanadham Garimella, Yasmith Bernal
  • Patent number: 7482173
    Abstract: A method for the efficient immobilization of silylated molecules such as silylated oligonucleotides or proteins onto unmodified surfaces such as a glass surface is provided. Also provided are compounds, devices, and kits for modifying surfaces such as glass surfaces.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: January 27, 2009
    Assignee: Nanosphere, Inc.
    Inventors: Viswanadham Garimella, Yasmith Bernal
  • Patent number: 7476550
    Abstract: A method for the efficient immobilization of silylated molecules such as silylated oligonucleotides or proteins onto unmodified surfaces such as a glass surface is provided. Also provided are compounds, devices, and kits for modifying surfaces such as glass surfaces.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: January 13, 2009
    Assignee: Nanosphere, Inc.
    Inventors: Viswanadham Garimella, Yasmith Bernal
  • Patent number: 7462509
    Abstract: An method of packaging an electronic device. The method for packaging the device including: providing a first substrate, a second substrate and an integrated circuit chip having a first side and an opposite second side, a first set of chip pads on the first side and a second set of chip pads on the second side of the integrated circuit chip, chip pads of the first set of chip pads physically and electrically connected to corresponding substrate pads on the first substrate and chip pads of the second set of chip pads physically and electrically connected to substrate pads of the substrate.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: December 9, 2008
    Assignee: International Business Machines Corporation
    Inventors: Kerry Bernstein, Timothy Dalton, Timothy Harrison Daubenspeck, Jeffrey Peter Gambino, Mark David Jaffe, Christopher David Muzzy, Wolfgang Sauter, Edmund Sprogis, Anthony Kendall Stamper
  • Publication number: 20080280372
    Abstract: A device for continuous detection of the presence of a cyanide analyte and/or cyanogen analyte in an aqueous sample which relies upon continuous sampling and controlled delivery of reagents for a chemical reaction which forms a colored dye in the presence of the analyte(s). The device employs a single chemical detection pathway which detects both cyanide and cyanogen and demonstrates continuous user-free operational stability over at least a one month period of time. The continuous monitoring device optionally may include a command post computer interface for enabling the remote monitoring of one or more devices, a wireless communication module for providing real-time data monitoring of the devices to a central monitoring facility, and a global positioning system module to enable the determination of an exact location of the analyte contamination in a water network. A method for detecting these analytes is also provided.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 13, 2008
    Inventors: Jeremy P. Walker, Jon M. Washburn, JR., Markus Erbeldinger
  • Publication number: 20080227214
    Abstract: A process is described for preparing 3-pentenenitrile by hydrocyanating 1,3-butadiene in the presence of at least one catalyst, wherein unhydrocyanated 1,3-butadiene is removed from the effluent of the hydrocyanation and recycled into the process, and the recycled 1,3-butadiene is monitored for the content of hydrogen cyanide.
    Type: Application
    Filed: January 26, 2005
    Publication date: September 18, 2008
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Tim Jungkamp, Robert Baumann, Thorsten Schroder, Michael Bartsch, Gerd Haderlein, Hermann Luyken, Jens Scheidel