Method and apparatus for photometrically monitoring low level co

Details Method and apparatus for photometrically monitoring low level co Method and apparatus for photometrically monitoring low level co

1981-10-13

1983-04-19

Turk, Arnold

Chemistry: analytical and immunological testing

Sulfur containing

Organic or sulfhydryl containing

422 68, G01N 2175

Patent

active

043805868

ABSTRACT:
A method and an apparatus for photometrically analyzing the hydrogen sulfide concentration in a stream containing at least a first predetermined concentration of bonded hydrogen sulfide-amines and ultraviolet radiation-absorbing impurities is characterized by isolating a first, reference, sample of the stream and removing the hydrogen sulfide from the reference sample until a second, lower, predetermined concentration remains. Thereafter, the first, reference, sample is photometrically analyzed and a reference signal representative of the ultraviolet radiation-absorbing characteristics of the first, reference, sample is produced. The reference signal is thereafter used in the photometric analysis of a second sample to produce a signal representative only of the hydrogen sulfide concentration in the second sample.

REFERENCES:
patent: 2554414 (1951-05-01), McClendon
patent: 3338664 (1967-08-01), Bally et al.
patent: 3617136 (1971-11-01), Lyshkow
patent: 3712792 (1973-01-01), Lyshkow

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