Phased micro analyzer VIII
First Claim
1. A fluid analyzer comprising:
- a concentrator;
a separator connected to the concentrator;
a pump connected to the separator; and
a controller connected to the concentrator, separator and the pump; and
wherein the concentrator has a channel with adsorber films having a thickness as large as possible but sufficiently thin enough for a needed desorption speed.
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Accused Products
Abstract
A micro fluid analyzer that may be highly sensitive, fast and very compact. The analyzer may use sufficiently low power per analysis to be easily implemented with an equivalently small battery pack or other portable power source. There may be energy conservation features in the analyzer, such as optimal adsorber film thicknesses in the pre-concentrator, concentrator and chromatographic separators. There may be special timing of the phased heating elements in the concentrators and separators to further reduce energy consumption. Various kinds of detectors and sensors may be incorporated in the analyzer for achieving low probability for false positives and detection versatility. There may be a controller that provides data acquisition and analyses, drive signals for control, management of wireless signal transmission and reception, processing, and other operational uses of the micro analyzer.
84 Citations
44 Claims
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1. A fluid analyzer comprising:
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a concentrator;
a separator connected to the concentrator;
a pump connected to the separator; and
a controller connected to the concentrator, separator and the pump; and
wherein the concentrator has a channel with adsorber films having a thickness as large as possible but sufficiently thin enough for a needed desorption speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A fluid analyzer comprising:
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means for concentrating the group of analytes with phased heaters;
means for separating the group of analytes; and
means for measuring a differential thermal conductivity of the fluid before, between and after concentrating and separating certain analytes of the fluid. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 44)
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18a. a. (canceled)
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24. A method for analyzing a fluid comprising:
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concentrating analytes of a fluid with phased heaters;
measuring a flow of the fluid;
measuring a first thermal conductivity of the fluid;
separating the fluid; and
measuring a second thermal conductivity of the fluid. - View Dependent Claims (25, 26, 27, 28)
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29. A micro fluid analyzer comprising:
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a concentrator;
a flow sensor connected to an output of the concentrator;
a separator having an input connected to the flow sensor; and
wherein;
the concentrator comprises phased heaters that heat in synchrony a volume element of a flow of fluid having analytes that moves by each phased heater, wherein each phased heater on just long enough to desorb adsorbed analytes and to increase a concentration of the analytes in the volume element of the flow of fluid; and
each phased heater turns off and decreases in temperature when the volume element of the fluid leaves the respective phased heater. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification