Method and apparatus for extraction of airborne amine compounds

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

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564437, 564497, 564498, 436107, 436111, 436181, G01N 3106, G01N 3108

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043814085

ABSTRACT:
A method and apparatus are disclosed for extracting amine compounds from air samples without loss due to formation of nitrosamine artifacts. The apparatus includes a cartridge having a separation zone between a first port and a second port. The separation zone contains an air pervious packing of a granular, solid phase amine complexing agent. The method includes a first step of driving an air sample through the separation zone of the cartridge from the first port to the second port, and a second step of driving an eluent through the separation zone from the second port to the first port, or backflushing the cartridge. To extract amine compounds, the eluent is a solvent for the amine complexing agent in the separation zone of the cartridge. The method may contain the further step of determining the amine compound concentration of at least a portion of the eluate which passes from the separation zone following the second step of the method.

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