Solid material collector with detector

Details Solid material collector with detector Solid material collector with detector

1996-11-14

1999-01-19

Smith, Duane S.

Gas separation: apparatus

Solid sorbent apparatus

With control means responsive to sensed condition

73 3106, 7386323, 96117, 96399, 96413, 96417, B01D 5304

Patent

active

058610537

ABSTRACT:
An environmental air is sucked by the pump with control unit, and organic solvent contained in the environmental air is collected by the absorbent. Organic solvent having passed through the absorbent is detected by the semiconductor gas sensor. If passage of a material to be measured is detected by the semiconductor gas sensor, operation of the pump with control unit is stopped, and the operation for collecting the material is terminated. Then the absorbent is taken out from the collecting tube, the material collected is quantified by means of gas chromatography, and the density is measured. With this configuration, measurement of a density of a material to be measured in a working environment can be executed accurately.

REFERENCES:
patent: 3295359 (1967-01-01), Peck
patent: 4178794 (1979-12-01), Jugle et al.
patent: 4277259 (1981-07-01), Rounbehler et al.
patent: 4375667 (1983-03-01), Buchan
patent: 4389903 (1983-06-01), Bertone et al.
patent: 4721517 (1988-01-01), Cloutier
patent: 4961916 (1990-10-01), Lesage et al.
patent: 5205155 (1993-04-01), Cooper
patent: 5553507 (1996-09-01), Basch et al.
patent: 5702506 (1997-12-01), Shih et al.

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