Abstract: A fluid treatment device (100) has a first substrate (210), a second substrate (120), and a resin film (130) located between the first substrate (210) and the second substrate (120). On the first substrate (210) are formed a first flow channel (111), a region (214) facing a valve formed at the end of the first flow channel (111), a second flow channel (112), and a barrier wall (215) located between the region (214) facing the valve and the end of the second flow channel (112). On the second substrate (120) is formed a pressure compartment (123). The region (214) facing the valve and the barrier wall (215) face the pressure compartment (123) on opposite sides of a diaphragm (131) of resin film (130).

Abstract: A system for collection and delivery of sub-milliliter liquid samples is described that provides a dramatic simplification for the measurement of clinical values. The system produces high dilutions of capillary size samples, such as bodily fluids or blood, by a factor of 1000 or more. Multiple assays can be conducted on a sample of 0.1 cc or less. A small lancet can create a drop of blood on a fingertip or other location, which can be collected into a self-priming capillary blood collector. The sample is then loaded into a consumable loader. Then a fluid, such as saline, is flowed into the consumable loader, and passes through the capillary collector, washing out the fluid. Downstream, the blood in the capillary is reliably diluted by mixing with appropriate reagents to allow analysis of selected blood properties. One or more individual bubbles can be inserted into the stream during loading. The capillary loading system can be used for one or several assays on a single blood sample.

Abstract: The present invention discloses a gradually-ascending spiraled passive sampler for measuring sediment-water diffusion flux of organic polutants, which comprises a sediment pore-water sampler and a water sampler arranged above the sediment pore-water sampler, wherein a plurality of sediment sampling units are vertically arranged in the sediment pore-water sampler, and the water sampler is provided with a plurality of water sampling units arranged transversely along the vertical direction in sequence.

Abstract: Embodiments of the present disclosure relate generally to nutrient monitoring in an agricultural field, and more specifically to devices, systems and methods that provide real time analysis and monitoring of one or more nutrients using ion selective electrodes.

Abstract: Systems and methods for direct and indirect measurement of the density of a fluid which exhibits sag characteristics is disclosed. The sag measurement system includes a test container for holding a fluid mixture to be analyzed and a suction port on the test container. A pump is coupled to the suction port for circulating the fluid mixture from the test container through a circulation loop. A measurement device is coupled to the circulation loop and a return port directs the fluid mixture from the circulation loop back to the test container at substantially the same vertical location as the suction port. The fluid mixture flowing through the circulation loop passes through the measurement device before returning to the test container through the return port. The measurement device is operable to monitor the particle distribution of the fluid mixture as it changes due to gravity.

Abstract: The subject matter of the present disclosure is directed to developing a method of measuring the amount of producible oil and the producible oil saturation in shale-oil reservoirs using sample source rock. Further, the physical and chemical properties and amounts of producible oil in shale-oil reservoir samples may be determined. First and second solvents are applied to a sample source rock to extract petroleum from the sample source rock. The extracted source rock, the twice-extracted source rock, and the first and second extracted petroleum may be analyzed to determine the characteristics and properties of the reservoir rock.

Abstract: A body fluid testing apparatus with testing and storing functions is provided, which comprises a body, a cover at least two body fluid collectors and a testing element. The body comprises a fluid storing chamber, a testing chamber and a partition wall. The fluid storing chamber and the testing chamber are divided by the partition wall. The body is covered by the cover with at least two through-holes through which the body fluid collectors respectively enter into the fluid storing chamber and the testing chamber. The testing element is inserted into the testing chamber. Pollution is avoided which results from that the body fluid in the testing chamber cannot flow back into the fluid storing chamber.

Abstract: The present disclosure provides devices, systems and methods for concentrating a fluid sample. A portable or hand-held concentrator is used to draw the fluid sample through a filter into an internal chamber, capturing target particles on the filter. An elution cartridge containing an elution fluid is used to recover the captured particles into a reduced fluid volume. The hand-held concentrator includes a tip, which, when opened, allows the hand-held concentrator to draw the fluid sample into the tip and through the filter wall into the internal chamber. The drawing occurs due to a vacuum or wicking source in the internal chamber of the hand-held concentrator. The target particles are captured on the filter. The elution fluid contains a foaming agent and is held under a head pressure of gas soluble in the elution fluid. The target particles are eluted from the filter into the reduced fluid volume using an elution foam that is formed when the elution fluid is released from the elution cartridge.

Abstract: A gas sampling probe is provided that includes an elongate member having an inlet end and an outlet end, and a sampling passage disposed within the member. The sampling passage extends from the inlet end to the outlet end. The inlet end comprises a curved outer surface. Numerous other aspects are provided.

Abstract: Disclosed are systems and methods for cleaning optical windows used in an inline optical fluid analyzer. One system includes a sampling module having an inlet and an outlet and a flow path extending therebetween, the flow path being fluidly coupled to a pipeline containing a fluid, at least one optical computing device arranged within the sampling module in optical communication with the flow path and configured to monitor a sample flow of the fluid for one or more characteristics of the fluid, the at least one optical computing device having one or more optical sampling windows in contact with the sample flow of the fluid, and a solvent dispenser fluidly coupled to the flow path and configured to provide a solvent to the flow path to remove a residue built up on the one or more sampling windows.

Abstract: Instruments, devices and methods of analysis are provided which fully integrate a significant number of process steps in a continuous operation. Accurate positioning and full contact between components is also provided by the relative movement the designs allow. An effect interface between a low cost disposable cartridge or device and the instrument to process it is also detailed.

Abstract: A sampling device allows samples to be taken from a fluid that is pressurized and/or contains volatile components. The sampling device has a sampling housing (121, 521), an inlet (10, 110, 510), an outlet (11, 111, 511), a measuring cell (17, 317, 517) and a valve unit (118, 534). The valve unit has a valve which, in a first position, connects the inlet to the outlet by way of the measuring cell. In a second position, the valve connects the inlet directly to the outlet, while also disconnecting the measuring cell from both the inlet and the outlet. The valve unit also has at least one adjustable flow restrictor, through which the flow of the fluid through the sampling device is regulated.

Abstract: The invention provides an apparatus and a method of processing a biological and/or chemical sample in a liquid droplet. The apparatus comprises a processing compartment, which is defined by a reservoir and an immobilization member. The processing compartment is further adapted to accommodate a medium, which is immiscible with the liquid droplet, and of a lower surface energy than the liquid of the liquid droplet. The reservoir is defined by a circumferential wall and a base. The immobilization member is arranged within the reservoir and comprises a surface that is patterned in such a way that it comprises at least one predefined immobilization area. The predefined immobilization area within the patterned surface is of a higher surface energy than the medium. The liquid droplet is disposed onto the predefined immobilization area, whereby the liquid droplet is immobilized thereon via hydrophilic-hydrophilic or hydrophobic-hydrophobic interactions.

Abstract: A protective cap 2 is engaged with a latch 10 of a diluent container 5 so as to fix the diluent container 5 at a liquid holding position of a diluent container containing section 11. The engagement is released when the protective cap 2 is set to an open position against the engagement so as to expose an inlet 13. When the protective cap 2 is shifted from the open position to a closed position, the protective cap 2 pushes the diluent container 5 into a liquid discharge position. Thus, it is possible to preserve a diluent for a long period of time and to easily open the diluent container 5 without having to complicate the structure of an analysis apparatus.

Abstract: The invention relates to a test system (1) for equipment using fuel, characterised in that it comprises a closed supply circuit (2) of the equipment configured to supply contaminated fuel to the equipment (3), said circuit comprising: at least one tank (4) comprising fuel, and a pollution module (5), comprising one or more vats (6), comprising fuel contaminated by solid contaminants, said module (5) being configured to introduce contaminated fuel to a section (8) of the supply circuit (2) in which the fuel extracted from the tank (4) circulates towards the equipment (3), and an agitating tool (13), configured to take contaminated fuel from the vat (6) and return it to the vat (6), so as to agitate the contaminated fuel in the vat (6).

Abstract: Disclosed herein are portable diagnostic measurement devices for determining at least one analysis parameter of a bodily fluid, in particular for determining an analyte concentration in a bodily fluid as can occur in blood glucose determinations. Also disclosed are analysis systems including the measurement device and at least one disposable test element. The test element can be designed as a carrier strip and can contact a receiving surface of the measurement device at least partially in a flat manner, where the receiving surface is arranged on a narrow side of the housing of the measurement device.

Abstract: The invention discloses a disposable cartridge for preparing a sample fluid containing cells for analysis. The cartridge comprises one or more parallel preparation units, each preparation unit comprises one or more chambers enclosed between seals and connected in series. Each chamber is configured for receiving an input fluid, performing a procedure affecting the fluid thereby generating an output fluid, and releasing the output fluid. A first chamber of the one or more chambers is a pressable chamber coupled to a first opening, while a last chamber of the one or more chambers is coupled to a second opening. The input fluid of the first chamber is the sample fluid. The one or more preparation units are coupleable to a compartment for performing analysis of the respective output fluids convey able via the second openings.

Abstract: Systems and methods for direct and indirect measurement of the density of a fluid which exhibits sag characteristics is disclosed. The sag measurement system includes a test container for holding a fluid mixture to be analyzed and a suction port on the test container. A pump is coupled to the suction port for circulating the fluid mixture from the test container through a circulation loop. A measurement device is coupled to the circulation loop and a return port directs the fluid mixture from the circulation loop back to the test container at substantially the same vertical location as the suction port. The fluid mixture flowing through the circulation loop passes through the measurement device before returning to the test container through the return port. The measurement device is operable to monitor the particle distribution of the fluid mixture as it changes due to gravity.

Abstract: The present invention is a mist testing device having a freezing chamber 30 (a mist-freeze unit) that freezes a mist particle injected from a injection valve 12, a tray 40 (a frozen-mist-hold unit) that holds a frozen mist particle 42 frozen by the freezing chamber 30, and an analyze unit 86 that analyzes the frozen mist particle 42 held by the tray 40.

Abstract: The disclosure includes a device for mixing a multiphase fluid which includes a mixing chamber; a mixing element translatable along a central axis of the mixing chamber, the distance between a point of the inner surface of the mixing chamber and the central axis being occupied between 85% and 95% by the mixing element along at least one section transverse to the central axis.

Abstract: Disclosed is a liquid chromatograph provided with: a first flow path switching means which switches between connection of a sample storage loop to a mobile phase flow path and separation of the sample storage loop from the mobile phase flow path; a needle which suctions and discharges a sample; a weighing means which performs suction and discharge of the sample to the needle while weighing the sample; a cleaning solution feeding means which feeds a cleaning solution; a second flow path switching means which switches between at least two types of cleaning solutions; a third flow path switching means which switches between connection of the needle and the weighing means and connection of the needle and the cleaning solution feeding means; and a control means which controls operation of the first flow path switching means, the weighing means, the cleaning solution feeding means, the second flow path switching means, and the third flow path switching means, wherein the total amount of the sample is injected into

Abstract: A flow-through measuring cell having one inlet opening for entry of the fluid, and one outlet opening for exit of the fluid. A single measurement space is located between the inlet opening and outlet opening. A radiation measurement region is provided for measuring the interaction of the fluid in the measuring cell with electromagnetic radiation from outside the measuring cell. The radiation measurement region is bordered by two opposite windows of which one is intended for inlet and the other for exit of the electromagnetic radiation. The measuring cell has a positioning range with several operating positions with a different distance A, A? between the windows into which the measuring cell can be set without rotation.

Abstract: Disclosed is an analysis cell for the analysis, at very high pressure and high temperature, of fluid samples comprising a cylinder (1) in which an axially translatable piston is housed that defines, with the end walls of the cylinder, a closed compression chamber (10) in which the sample is confined, characterized in that the walls of said chamber (10) are provided with at least one bore (11) designed for sealably receiving an optical measuring element (2) movable inside said chamber between a retracted position retracted in the bore to allow the piston to pass, and a measuring position in which it protrudes in said chamber. The invention also relates to a method for detecting and/or measuring the quantity of solid matter using said cell.

Abstract: An injection device (100) comprising: a housing (102) defining a space (104); a seat (110) located in said space (104), the seat (110) being configured for receiving a flow path element (116) capable of injecting a pressurized fluid into the injection device (100) through the seat (110); a pressure source (132) for pressurizing a medium in said space (104), thereby reducing the pressure difference between the pressurized fluid in said flow path element (116) and said medium.

Abstract: A mixer for analytical application mixes a container of fluid without a magnetic stir bar. A device for testing a liquid for particles can use the mixer. The mixing can occur in a sealed container, and liquid can be transmitted to the device from the sealed container.

Abstract: Systems and methods for supporting a liquid against a vacuum pressure in a chamber can enable analysis of the liquid surface using vacuum-based chemical analysis instruments. No electrical or fluid connections are required to pass through the chamber walls. The systems can include a reservoir, a pump, and a liquid flow path. The reservoir contains a liquid-phase sample. The pump drives flow of the sample from the reservoir, through the liquid flow path, and back to the reservoir. The flow of the sample is not substantially driven by a differential between pressures inside and outside of the liquid flow path. An aperture in the liquid flow path exposes a stable portion of the liquid-phase sample to the vacuum pressure within the chamber. The radius, or size, of the aperture is less than or equal to a critical value required to support a meniscus of the liquid-phase sample by surface tension.

Abstract: Methods and apparatus are described for sampling and diluting concentrated emulsions, which may be oil-in-water emulsions, water-in-oil emulsions, or other concentrated emulsions. One method embodiment of the invention comprises obtaining a sample of a concentrated emulsion comprising a dispersed phase and a continuous phase fluid; measuring droplet concentration of the dispersed phase in the sample; and for droplet concentration of the sample greater than about 1000 ppm, diluting the sample with substantially pure continuous phase fluid, forming a first diluted emulsion. Methods of the invention include those wherein the obtaining of a sample comprises opening a fluid connection to a flowing stream comprising the concentrated emulsion, wherein the obtaining and diluting steps occur in real time.

Abstract: A sampling apparatus for sampling a fluid, the apparatus comprising a sensor and a flow regulator open to allow the continuous flow of fluid through the apparatus past the sensor.

Abstract: The invention relates to a membrane construction comprising multiple layers wherein at least one of the layers is a nanoweb made of polymeric nanofibers, wherein the mean flow pore size of the nanoweb is in the range from 50 nm to 5 ?m, wherein the number average diameter of the nanofibers is in the range from 100 to 600 nm, wherein the basis weight of the nanoweb is in the range from 1 to 20 g/m2, wherein the porosity of the nanoweb is in the range from 60 to 95%, wherein at least one of the layers is a support layer and wherein the nanoweb is hydrophilic.

Abstract: Provided is a microfluidic device. The microfluidic device includes a sample chamber in which a sample is accommodated. The sample chamber includes: an introduction portion including a loading hole through which the sample is loaded; an accommodation portion including a discharge hole; and a neck portion forming a boundary between the introduction portion and the accommodation portion. The neck portion provides a capillary pressure for controlling flow of the sample between the introduction portion and the accommodation portion.

Abstract: A syringe with a syringe cylinder and a syringe, with a seat for the syringe cylinder and an axially displaceable piston seat for the syringe piston, comprising an encoding on the syringe cylinder with encoding elements as protrusions and deepenings at seven encoding positions, checking elements in the form of further protrusions and further deepenings at seven checking positions, each being disposed between two encoding positions, wherein the encoding elements and the checking elements have six protrusions in total, and a guiding structure to align the syringe on a further guiding structure with each encoding element and with each checking element to a sensing element, said further guiding structure being disposed in the seat of the metering device and having a certain position with respect to an annular sensing device for sensing the encoding by sensing elements of the metering device that are across the circumference.

Abstract: An apparatus and method for analyzing a fluid wherein the apparatus comprises a transparent elongate body having a piston within a central cavity therein. The piston includes a first sealable chamber and defines a second chamber between the second end of the elongate body and the piston. The apparatus includes an opening through the second end of the elongate body and an actuator operably connected to the piston so as to draw the piston away from the opening so as to draw a second fluid into the second chamber. The method comprises introducing a volume of a control fluid into the first chamber and drawing the piston in a direction away from a second end of the elongate body so as to draw a volume of a sample fluid into the second chamber so as to permit visual comparison of the control and the sample fluids.

Abstract: A system is provided for detecting a liquid sample, and includes: a flow cell assembly formed with a sample receiving space therein, and inlet and outlet channels extending to the sample receiving space for guiding the liquid sample into and away from the sample receiving space; a sensor device including a sample detecting unit that is disposed in the sample receiving space, and that is operable to detect the liquid sample and to generate a detection signal accordingly, and a signal conducting unit that is connected electrically to the sensor device for conducting the detection signal therefrom; and a liquid introducing unit and a liquid discharging unit coupled to the inlet and outlet channels and cooperating therewith to form an introducing path and a discharging path for introducing the liquid sample into and for discharging the liquid sample from the sample receiving space, respectively.

Abstract: A vessel includes a cylindrical section, a bottom section, a lower ring, and an upper ring. The cylindrical section includes an inside and, an outside vessel surfaces, an upper end region terminating at a rim circumscribing a vessel opening, a vessel groove formed at the outside vessel surface in the upper end region, and a lower end region axially spaced from the upper end region. The bottom section is disposed at the lower end region. The lower ring includes annular lateral and an annular flange portions. The lateral portion is disposed in the vessel groove and includes an outer lateral surface concentric with the inside vessel surface. The flange portion includes an upper and a lower flange surfaces perpendicular to the inside vessel surface. The upper ring includes an inner section extending over at least a portion of the rim, and an outer section securely engaging the upper flange surface.

Abstract: This invention provides a device for detecting an analyte in a liquid sample, comprising a cup body (7), a lid (1) and a base (15), wherein, said the cup body (7) comprises a liquid storage chamber (9) and a test strip groove locating in one side of liquid storage chamber, the storage chamber (9) and the test strip groove communicates each other through a small hole in the bottom of liquid storage chamber, the test strip groove is configured with a test strip plate, said lid being able to seal the opening of the cup tightly, said opening of cup being directly connected with the liquid storage chamber.

Abstract: A water distribution system comprises a water distribution conduit. Disposed in the conduit is a device for measuring a value of at least one parameter representative of the quality of the water flowing in the conduit. The device comprises means for measuring the parameter and means for directing substantially all of the water through the device in close proximity to the means for measuring the one parameter.

Abstract: An apparatus, system, and method for determining the osmolarity of a fluid. The apparatus includes at least one micro-fluidic circuit and at least one electrical circuit disposed in communication with the micro-fluidic circuit for determining a property of a fluid contained within the at least one micro-fluidic circuit.

Abstract: A nanoflow detector cell comprises a nanoflow detection cell template defming a sample channel transverse template and a reference channel transverse template, generally parallel to the sample channel, and spaced apart from the sample channel. Clear capillary tubing extends through the sample channel, defming a sample chamber, a portion of the capillary tubing extends out of each end of the sample channel, and is shaped to the template.

Abstract: A method of measuring thermo-physical properties of a reservoir fluid includes introducing the fluid under pressure into a microchannel, establishing a stabilized flow of the fluid through the microchannel, inducing bubble formation in the fluid disposed in the microchannel, and determining the thermo-physical properties of the fluid based upon the bubbles formed as the fluid flows through the microchannel.

Abstract: A method of estimating the amount of unreacted starting materials (glycerides, methyl esters, etc.) and the composition of a biodiesel using TLC in conjunction with a lipophilic dye, Nile Red is described herein. The dye based TLC method of the present invention is convenient and provides significant advantages over existing methods for estimating the purity of a biodiesel composition.

Abstract: Systems and methods are provided for sample processing. A device may be provided, capable of receiving the sample, and performing one or more of a sample preparation, sample assay, and detection step. The device may be capable of performing multiple assays. The device may comprise one or more modules that may be capable of performing one or more of a sample preparation, sample assay, and detection step. The device may be capable of performing the steps using a small volume of sample.

Abstract: Various medical systems and methods are described, including a medical monitoring system. The medical monitoring system can have a fluid system configured to receive bodily fluid and optically analyze said fluid to determine analyte concentration. The fluid system can have a removable portion. The removable portion can have an opening with a port. The system can also have a container configured to contain anticoagulant. The container can have a portion configured to mate with the port of the removable portion. The container can be further configured to not fit into a conventional luer fitting. An anti-coagulant insertion apparatus is also described. The apparatus can have a syringe, a dock with a port, and an adapter configured to connect the syringe to the port. The dock can also have a tab configured to move with the port.

Abstract: A sample processing apparatus is disclosed. The apparatus comprises a sample processing section configured to perform a process on a sample; and a controller configured to execute an order defining a process to be performed on a sample and to cause the sample processing section to perform the process on the sample according to the order. When the controller receives an instruction to perform a shutdown operation, the controller performs the following operations comprising: prohibiting the execution of the shutdown operation if an unexecuted order remains; and causing the sample processing section to perform the shutdown operation if there is no unexecuted order.

Abstract: A solution feeding device for feeding a sample solution which is precisely adjusted in the mixed quantity of a standard solution is realized. The solution feeding device comprises: a mixing module (100) including a first passage (101), a second passage (102), and a third passage (103) for providing communications of the midways of those two passages with a higher passage resistance than those of the two passages; a first storage unit (10) communicating with one end side of the first passage for storing a sample solution; a suctioning nebulizer (20) communicating with the other end side of the first passage for sucking the sample solution; a second storage unit (30) communicating through an on-off valve (31) with one end side of the second passage for storing a standard solution; and a syringe pump (40) communicating with the other end side of the second passage for sucking and discharging the standard solution, respectively, in the open state and the closed state of the on-off valve.

Abstract: The invention relates to an apparatus for simultaneously injecting fluids into a plurality of samples of porous media, comprising: a plurality of holders for the samples of porous media, each holder comprising a sleeve and first and second platens, the first platen having an inlet for an injection fluid and the second platen having an outlet for a produced fluid, and the samples of porous media being arranged, in use, in each of the holders such that the first platen and second platen of each holder contact a first and second end of the sample of porous medium respectively, the inlet of each first platen being in fluid communication with an injection line for injecting fluid into the sample of porous medium arranged in the holder, the outlet of each second platen being in fluid communication with a dedicated effluent line for removing fluid produced from the sample of porous medium arranged in the holder, on-line and/or off-line analytical means for analyzing the fluids injected into each of the samples of po

Abstract: The invention provides an apparatus for discontinuous filtration of a liquid, having a filter station for filtration, a feed line for supplying the liquid to the filter station, and a filter medium movable relative to the station, the filter medium comprising at least two different membranes, which together in the filter station effect multistage filtration. The invention additionally relates to a method for discontinuous filtration of a liquid or for filtering isolated quantities of liquid, comprising: providing a filter station for filtration, the filter station comprising a chamber in which filtration is carried out; moving or transporting a filter medium from a stock into the filter station, the filter medium comprising at least two membranes which are arranged next to one another in the chamber; and supplying the liquid to the chamber, such that the liquid is subjected to multistage filtration through the membranes.

Abstract: The present invention relates generally to an apparatus for obtaining a sample underwater. In one embodiment, the apparatus includes a syringe pump comprising a plurality of syringes, a sampling probe coupled to the syringe pump for collecting the sample underwater and an analyzer module coupled to the syringe pump.

Abstract: There are provided a device for testing droplets and an operation method thereof. The device includes a receiving layer on which a sample is received; a plurality of pressure sensors disposed below the receiving layer, and generating changes in capacitance by the sample received on the receiving layer; and a control unit measuring changes in capacitance generated by the plurality of pressure sensors and determining whether the sample received on the receiving layer is defective. According to the present invention, a location and an amount of a sample received on a receiving layer are measured based on changes in capacitance generated by a plurality of respective pressure sensors disposed below the receiving layer, thereby precisely testing whether the sample ejected in droplet form is defective.

Abstract: This disclosure is directed to systems and methods for holding a medical device such as a stent undergoing dissolution analysis. A clip retains the device in a specific, reproducible orientation and positions it within a sample cell of the dissolution testing apparatus. Preferably, the medical device is positioned away from areas having relatively greater flow turbulence.

Abstract: A technique is provided, wherein any influence, which would be otherwise exerted on a reaction of an objective substance caused by a reagent enzyme by an interfering substance contained in a specimen, is suppressed in relation to an electrochemical sensor for measuring the objective substance contained in the specimen. A sensor comprises a substrate; a detecting unit which is provided on the substrate and which detects an objective substance; a filter which covers the detecting unit, which permits permeation of the objective substance on one hand, and which regulates permeation of an interfering substance contained in a sample on the other hand; and removing unit which removes the interfering substance adhered to the filter.