Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1998-03-02
1999-12-07
Williams, Hezron
Measuring and testing
Gas analysis
Moisture content or vapor pressure
73 2404, 95273, G01N 700, B01D 4600
Patent
active
059963972
ABSTRACT:
The concentration of a component, e.g., moisture, in a sample fluid, such as a chemically reactive gas or liquid, is determined by the creation of an identical concentration in a chemically inert fluid. Sample and inert fluids are brought into contact with each other through a membrane that allows the exchange of the component. The inert fluid's component concentration is varied until it is detected to remain constant after passing the membrane. When the concentration generated in the inert fluid is known, the invention will constitute a quantitative analytical device that does not require the generation of a calibration curve. This means there is no need to generate multiple known component concentrations in the sample material. Alternatively, operating as an alarm device, the detection of a change in concentration in the inert fluid after membrane contact means that the sample's component level is different than that of the inert fluid. In this case the inert fluid concentration is maintained at a fixed concentration corresponding to the maximum allowable or alarm level of the desired component concentration of the sample.
Breakthrough Technologies, Inc.
Creighton Wray James
Narasimhan Meera P.
Politzer Jay L.
Williams Hezron
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