Method for continuous quantitative detection of sulphur dioxide

Details Method for continuous quantitative detection of sulphur dioxide Method for continuous quantitative detection of sulphur dioxide

1988-05-25

1989-08-15

Marcus, Michael S.

Chemistry: analytical and immunological testing

Sulfur containing

Sulfur dioxide

436172, 422 55, 422 58, 422 91, 2504581, G01N 3300, G01N 2176

Patent

active

048574724

ABSTRACT:
In order to obtain a higher measuring accuracy and better selectivity in the optical quantitative analysis of sulphur dioxide in gaseous or liquid media, it is proposed that the medium to be analyzed be brought into contact with a fluorescent indicator which emits fluorescent light upon excitation and which is from the group of triphenylmethane dyes, and that the extent to which fluorescence is quenched by the SO.sub.2 quencher be used as a measurable variable for quantitative determination of the content of sulphur dioxide in the medium.

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patent: 4407964 (1983-10-01), Elings et al.
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patent: 4587101 (1986-05-01), Marsoner et al.
patent: 4608344 (1986-08-01), Carter et al.
patent: 4657736 (1987-04-01), Marsoner et al.

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