Apparatus for measuring gaseous aldehyde

Details Apparatus for measuring gaseous aldehyde Apparatus for measuring gaseous aldehyde

1990-04-05

1993-04-27

Robinson, Douglas W.

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing gas sample

422 82, 422 8208, 422 88, 422255, 436 52, 436 53, 436128, 436130, 436178, 435807, G01N 3508, G01N 3301, G01N 118, C22C 3800, C22C 3842

Patent

active

052059880

ABSTRACT:
An apparatus for detecting gaseous aldehydes is disclosed which contains a detachable aldehyde capturing system and an aldehyde detection system. The gaseous aldehyde is passed across a semipermeable membrane with a solvent on the other side of this semipermeable membrane to dissolve and absorb the aldehydes from the gas. This system permits the concentration and detection of low concentrations of gaseous aldehyde in the sample for efficient measurement. The aldehyde dehydrogenase to produce NADH in an amount corresponding to the amount of aldehyde in the solvent. The aldehyde detection system measures the amount of NADH produced.

REFERENCES:
patent: 3838011 (1974-09-01), Hagen et al.
patent: 3948731 (1976-04-01), Weaver
patent: 4892816 (1990-01-01), Akiba et al.
patent: 4960711 (1990-10-01), Aoki et al.
patent: 4973561 (1990-11-01), Hansen et al.
Bailey et al. (1986) "Biochemical Engineering Fundamentals", 2nd Ed., McGraw Hill, New York, pp. 666-696.

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