Analytical system and method for detecting volatile organic compounds in water
AssigneeParker-Hannifin Corporation
InventorsKazi Z. A. Hassan, William M. Cost, John Arthur Morse, Michael L. Doutt, Glenn Stacey Geis
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Abstract
An analytical system and method for detecting volatile organic chemicals in water including a coated SAW detector that provides for improved reduction of moisture at the coating of the SAW detector. A stabilized SAW sensitivity and long lasting calibration is achieved. The analytical system further includes an improved sample vessel and sparger that allow for easy grab sample analysis, while also providing efficient purging of the volatile organic compounds from the water sample. In addition, an improved preconcentrator provides a stabilized sorbent bed.
Claims20
A system for detecting organic compounds in water including:
- a preconcentrator configured to collect the organic compounds;
- a gas chromatograph column configured to separate the organic compounds as desorbed from the preconcentrator;
- a surface acoustic wave detector configured to detect the mass of the organic compounds separated by the gas chromatograph;
- a housing that houses the preconcentrator, the gas chromatograph column, and the surface acoustic wave detector;
- a sample vessel removably attached to the housing and configured to contain a water sample from which the organic compounds are purged;
- and
- a sparger extending from the housing and disposed in the sample vessel with the sample vessel being attached to the housing.
A system according to 8, wherein the top end of the sample vessel is in fluid communication with a manifold with the sample vessel being attached to the housing.
Dependencies are inferred from the claim text.