Abstract: A method of processing data from a test device is provided. The method comprises determining a concentration of a first analyte in a fluid sample using first sensing chemistry, wherein the first analyte is an acidosis-related analyte; determining a concentration of a second analyte in the fluid sample using second sensing chemistry, wherein the second analyte is glucose; displaying a first indication related to the determined concentration of the second analyte; if the determined concentration of the first analyte is equal to or greater than a first threshold, providing a user-selectable option to display a second indication related to the determined concentration of the first analyte.

Abstract: A test meter for use with a dual-chamber, multi-analyte test strip includes a test strip receiving module and a signal processing module. The test strip receiving module has a first electrical connector configured for contacting a first analyte contact pad of a first working electrode of the test strip; a second electrical connector configured for contacting a second analyte contact pad of a second working electrode of the test strip, a third electrical connector configured for contacting a first counter/reference contact pad of a first counter/reference electrode layer of the test strip, and a fourth electrical connector configured for contacting a second counter/reference contact pad of a second counter/reference electrode layer of the test strip.

Abstract: A dual chamber, multi-analyte test strip has a first insulating layer, a first electrically conductive layer, with a first working electrode, disposed on the first insulating layer and a first patterned spacer layer positioned above the first electrically conductive layer. The first patterned spacer layer has a first sample-receiving chamber, with first and second end openings, defined therein that overlies the first working electrode. The test strip also includes a first counter/reference electrode layer that is exposed to the first sample receiving chamber and is in an opposing relationship to the first working electrode. The test strip further includes a counter/reference insulating layer disposed over the first counter/reference electrode layer and a second counter/reference electrode layer disposed on the counter/reference substrate. Also included in the test strip is a second patterned spacer layer that is positioned above the second counter/reference electrode layer.

Abstract: A test meter for use with a dual-chamber, multi-analyte test strip includes a test strip receiving module and a signal processing module. The test strip receiving module has a first electrical connector configured for contacting a first analyte contact pad of a first working electrode of the test strip; a second electrical connector configured for contacting a second analyte contact pad of a second working electrode of the test strip, a third electrical connector configured for contacting a first counter/reference contact pad of a first counter/reference electrode layer of the test strip, and a fourth electrical connector configured for contacting a second counter/reference contact pad of a second counter/reference electrode layer of the test strip.

Abstract: A dual chamber, multi-analyte test strip has a first insulating layer, a first electrically conductive layer, with a first working electrode, disposed on the first insulating layer and a first patterned spacer layer positioned above the first electrically conductive layer. The first patterned spacer layer has a first sample-receiving chamber, with first and second end openings, defined therein that overlies the first working electrode. The test strip also includes a first counter/reference electrode layer that is exposed to the first sample receiving chamber and is in an opposing relationship to the first working electrode. The test strip further includes a counter/reference insulating layer disposed over the first counter/reference electrode layer and a second counter/reference electrode layer disposed on the counter/reference substrate. Also included in the test strip is a second patterned spacer layer that is positioned above the second counter/reference electrode layer.

Abstract: A co-facial multi-analyte test strip includes a first insulating layer with an electrically conductive layer disposed thereon. The electrically conductive layer includes a first working electrode with a first analyte contact pad and a second working electrode with a second analyte contact pad. In addition, the first and second working electrodes of the electrically conductive layer are disposed on the first insulating layer in a planar inline configuration. The multi-analyte test strip also includes a patterned spacer layer positioned above the electrically conductive layer, with the patterned spacer layer defining a single bodily fluid sample-receiving chamber therein that overlies the first working electrode and the second working electrode.

Abstract: A system for the determination of an analyte in a bodily fluid sample includes an analytical test strip and an analytical meter. The analytical test strip has a substrate layer, an electroluminescent component (either an electroluminescent module and/or an electroluminescent lamp) disposed on the substrate layer, and a sample chamber configured for receiving a bodily fluid sample disposed above the substrate layer. Moreover, the analytical meter is configured for insertion of the analytical test strip therein and subsequent determination of the analyte.

Abstract: A soil sample of fixed volume is mixed with a drying agent (MgSO4) and then acetone. The liquid is filtered off and a sample is applied to the sensing surface of an attenuated total reflectance (ATR) device in an IR spectrometer. After evaporation of the acetone, absorption is measured in a C-H stretch region (e.g. 2950 cm?1) to provide a value indicative of the amount of oil in the sample.

Abstract: An analytical test strip for the determination of an analyte (such as glucose) in a bodily fluid sample (for example, a whole blood sample) includes a substrate layer, an electroluminescent lamp disposed on the substrate layer, a sample chamber configured for receiving the bodily fluid sample disposed above the substrate layer; and an enzymatic reagent disposed within the sample chamber. Moreover, the electroluminescent lamp is configured to emit light, the light being visible to a user of the analytical test strip and providing the user with spatial awareness of the analytical test strip.

Abstract: A method for manufacturing an analytical test strip with an electroluminescent component (either an electroluminescent module and/or an electroluminescent lamp) includes sequentially applying to a substrate layer, a rear electrode layer disposed on the substrate layer, an electrically-insulating layer disposed over the rear electrode layer, a phosphor layer disposed over the electrically insulating layer, and a front electrode layer (at least a portion of which is translucent) disposed over the phosphor layer. The sequential application is accomplished such that it forms an electroluminescent component of the analytical test strip.

Abstract: An analytical test strip for the determination of an analyte (such as glucose) in a bodily fluid sample (for example, a whole blood sample) includes a substrate layer, an electroluminescent module disposed on the substrate layer, a sample chamber configured for receiving the bodily fluid sample disposed above the substrate layer; and a fluorophore-containing photometric enzymatic reagent disposed within the sample chamber. Moreover, the electroluminescent module is in optical communication with the sample chamber and is configured to emit light that facilitates a fluorescent chemical reaction sequence involving the fluorophore-containing photometric enzymatic reagent and the analyte.

Abstract: A method for the determination of an analyte in a bodily fluid sample includes transferring a bodily fluid sample (such as a whole blood sample) to a sample chamber of an analytical test strip. The analytical test strip to which the bodily fluid sample is transferred has a substrate layer, an electroluminescent module disposed on the substrate layer and in optical communication with the sample chamber, and a fluorophore-containing photometric enzymatic reagent disposed within the sample chamber. In addition, the electroluminescent module is configured to emit light that facilitates a fluorescent chemical reaction sequence involving the fluorophore-containing photometric enzymatic reagent and the analyte.

Abstract: A system for the determination of an analyte in a bodily fluid sample includes an analytical test strip and an analytical meter. The analytical test strip has a substrate layer, an electroluminescent component (either an electroluminescent module and/or an electroluminescent lamp) disposed on the substrate layer, and a sample chamber configured for receiving a bodily fluid sample disposed above the substrate layer. Moreover, the analytical meter is configured for insertion of the analytical test strip therein and subsequent determination of the analyte.

Abstract: For the determination of analytes in body fluids, voltammetry using a simple, non-selective, electrode sensor system has been found to work. The signal is desirably processed by a technique such as neural network analysis, which can permit plural analytes to be determined simultaneously.

Abstract: Immunoassay of methyl tert-butyl ether (MTBE) and related fuel oxygenates and their breakdown products is performed using a monoclonal antibody produced using a hapten with a CH3—O—C(CH3)2—CH2-moiety, preferably CH3—O—C(CH3)2—(CH2)3—CH(CH3)—CH2—CHO conjugated to a carrier protein.

Abstract: A state, particularly a disease state, associated with the production of volatiles is detected by passing a sample containing the volatiles to a single sensor. This may be a semiconductor gas sensor element or a surface acoustic wave device. This provides an output signal, e.g. in the form of a tailing peak. A plurality of characteristics of the signal (e.g. peak height and maximum positive gradient) are measured to characterise the sample and hence the underlying state. For example we can discriminate between urine samples which are (a) infected with proteus, (b) infected with E. coli or (c) uninfected.

Abstract: Liquid, particularly leaked oil or other hydrophobic liquid, is detected by a sensor. This preferably has a hydrophobic membrane (G) that takes up the oil selectively, a radiation source (A) that beams radiation at an interface between the membrane (G) and a window (F), and a radiation detector (H) that receives radiation resulting from interaction (such as reflection, scattering or fluorescence) of the input radiation with the liquid-containing membrane (G). The detector may employ a spectrofluorimeter (H) whose output can be used to characterise the liquid.

Abstract: A method of determining an analyte in the gaseous or vapour phase and in which a bioreceptor or biomimic is retained at an electrode. The bioreceptor or biomimic is preferably retained at a support at the electrode which comprises a solid or gel matrix of an electrolyte, especially organic salt electrolytes. Electrochemical detection of analytes in this way has several advantages over existing methods which rely on solution monitoring. For example gas sensors can be prepared for monitoring an analyte by the occurrence of a reaction with a bioreceptor or biomimic, in addition to monitoring the presence of toxins due to inhibition of the bioreceptor or biomimic reaction. Furthermore, the invention enables gas or vapour analyte monitoring with increased sensitivity and speed and greater stability of the sensors can be achieved. The invention also relates to novel media for carrying out bioelectrochemical reactions.