Hydraulic fluid vapor sensor

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample

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422 78, 422 80, 422 82, 436103, 436104, 436139, 436142, 436155, 436161, 73 2335, 73 2342, 7386311, 7386483, G01N 3002

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active

055651720

ABSTRACT:
A method and apparatus for detecting the presence of a vapor of an alkyl ester of phosphoric acid, particularly tributylphosphate, in ambient air. A sample of ambient air is heated to convert any alkyl ester of phosphoric acid to an alkene. The heated sample of air is then passed to a sample loop. Carrier air periodically carries a fixed volume of sample from the sample loop through a chromatographic column to a photoionization detector which detects the presence and amount of the alkene in the sample.

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