The invention relates to an a sensor system (100) for quantitatively detecting at least one compound in a fluid mixture, said fluid mixture comprising the compound to be detected, wherein the sensor system (100) comprises a sorbent material (102) being capable of sorbing the at least one compound to be detected, wherein the sorbent material (102) undergoes a temperature change when sorbing the at least one compound; at least a first temperature sensor (104) for measuring the temperature of the sorbent material (102); and a control unit (110) being adapted for quantitatively determining the at least one compound to be detected based on the temperature change of the sorbent material (102). Such a sensor system (100) provides an improved measurement especially in the field of oxygen concentrators. The invention further relates to an oxygen concentrator (10) for generating oxygen enriched gas as well as to a method of quantitatively detecting at least one compound in a fluid mixture.

Automated isothermal titration micro calorimetry (ITC) system comprising a micro calorimeter with a sample cell and a reference cell, the sample cell is accessible via a sample cell stem and the reference cell is accessible via a reference cell stem. The system further comprises an automatic pipette assembly comprising a syringe with a titration needle arranged to be inserted into the sample cell for supplying titrant, the pipette assembly comprises an activator for driving a plunger in the syringe, a pipette translation unit supporting the pipette assembly and being arranged to place pipette in position for titration, washing and filling operations, a wash station for the titrant needle, and a cell preparation unit arranged to perform operations for replacing the sample liquid in the sample cell when the pipette is placed in another position than the position for titration.

A fluid detecting device for detecting the presence of a substance in a fluid in an area comprising: a heating element arranged in said area, a first thermal sensor arranged adjacent to said heating element adapted to detect a temperature (T1) at said heating element, wherein said heating element is coated with a hydrophobic sorbent adapted to adsorb a substance present in said fluid in said area. The invention further relates to a method for detecting the presence of a substance in a fluid in an area.

Automated isothermal titration micro calorimetry (ITC) system comprising a micro calorimeter with a sample cell and a reference cell, the sample cell is accessible via a sample cell stem and the reference cell is accessible via a reference cell stem. The system further comprises an automatic pipette assembly comprising a syringe with a titration needle arranged to be inserted into the sample cell for supplying titrant, the pipette assembly comprises an activator for driving a plunger in the syringe, a pipette translation unit supporting the pipette assembly and being arranged to place pipette in position for titration, washing and filling operations, a wash station for the titrant needle, and a cell preparation unit arranged to perform operations for replacing the sample liquid in the sample cell when the pipette is placed in another position than the position for titration.

A method for calorimetry includes flowing a first fluid through a co-flow reactor microchannel having plural inlets and an outlet, the first fluid flowing through each of the inlets, and measuring transmission of light through a Nano Hole Array (NHA) sensor to obtain a baseline extraordinary optical transmission (EOT) measurement. The flow of the first fluid is stopped, the microchannel is emptied of the first fluid, and the first fluid and a second fluid are passed through the microchannel such that a reaction occurs, the first fluid flowing through a first of the inlets and the second fluid flowing through a second of the inlets. While flowing the first and second fluids, transmission of light through the NHA sensor is measured to obtain a reaction EOT measurement. A calorimetry measurement, indicative of energy released during the reaction, is calculated as a function of the baseline and reaction EOT measurements.

A combustible gas sensor includes a first sensing element, which includes a catalyst and a heating element in operative connection with the catalyst to heat the catalyst above a temperature to combust gas analytes of interest, and electronic circuitry in operative connection with the heating element of the first sensing element to periodically cycle the first sensing element between a temperature above the temperature to combust the analytes of interest and a temperature at which the catalyst is substantially inactive to catalyze oxidative combustion of the analytes of interest. The electronic circuitry is adapted to determine a species of at least one of the gas analytes of interest from a first output of the combustible gas sensor during an ON time within a cycle duration. The electronic circuitry is further adapted to determine a concentration of the species of gas from a second output of the combustible gas sensor.

A reaction carrier (14), a measuring device (12) and a measuring method measure a concentration of gaseous and/or aerosol components of a gas mixture. A flow channel (42), extends between two connecting elements (44) and defines a reaction chamber (46) with an optically detectable reaction material (48) that reacts a component of the gas mixture or with a reaction product of the component. The reaction carrier (14) includes a temperature-measuring element (88). The measuring device (12) includes a temperature-measuring element (90) which records a temperature of the measuring device (12) and/or of the reaction carrier (14), and a temperature-determining unit (92) which determines the temperature of the gas mixture as a function of the measurement result of the at least one temperature-measuring element (90). The measuring method includes determining a concentration of the component on the basis of an optically detectable reaction and the determined temperature of the gas mixture.

An apparatus is provided for sensing an analyte in a fluid. The apparatus includes a fluid collecting device configured to collect the fluid containing the analyte; a fluid input in fluid communication with the fluid collecting device configured to input the fluid containing the analyte into the fluid collecting device, an analyte interactant in fluid communication with the fluid collecting device, wherein the analyte interactant, when contacted by the analyte, reacts to cause a first change in thermal energy within the fluid collecting device; a modulator that causes a second change in thermal energy; a thermal sensing device comprising at least one pyroelectric device thermally coupled to the fluid collecting device to generate a first signal in response to at least one of the first change in thermal energy and the second change in thermal energy; a control device operatively coupled to the thermal sensing device and the modulator that generates a second signal, wherein the second signal comprises information useful in characterizing the analyte. A related method also is disclosed.

Fluid flow systems can include one or more resistance temperature detectors (RTDs) in contact with the fluid flowing through the system. One or more RTDs can be operated in a heating mode and a measurement mode. Thermal behavior of the one or more RTDs can be analyzed to characterize a level of deposit formed on the RTD(s) from the fluid flowing through the system. Characterizations of deposition on RTDs operated at different temperatures can be used to establish a temperature-dependent deposition profile. The deposition profile can be used to determine if depositions are likely to form at certain locations in the fluid flow system, such as at a use device. Detected deposit conditions can initiate one or more corrective actions that can be taken to prevent or minimize deposit formation before deposits negatively impact operation of the fluid flow system.

A system and method for estimating an adsorption equilibria for one or more gases from pure component adsorption isotherms includes providing one or more processors, a memory communicably coupled to the one or more processors and an output device communicably coupled to the one or more processors, calculating an adsorption of each gas on a constant monolayer adsorption surface is calculated using the one or more processors and the generalized Langmuir isotherm equations (24)-(26) or equation (27), providing the adsorption of each gas to the output device, and developing a chemical process or product is developed using the adsorption of each gas.