Irradiation-distillation apparatus and method for measuring cyan

Details Irradiation-distillation apparatus and method for measuring cyan Irradiation-distillation apparatus and method for measuring cyan

1998-07-02

1999-10-12

Soderquist, Arlen

Chemistry: analytical and immunological testing

Nitrogen containing

Cyanide or isocyanide

436 52, 436 53, 436119, 422 81, 422 82, G01N 2175, G01N 3300

Patent

active

059654503

ABSTRACT:
A system for measuring the amount of cyanide species in a sample, namely total cyanide, dissociable cyanide, complex cyanide and thiocyanate, by using a single apparatus for simultaneous ultraviolet irradiation and distillation. The system which can be used with either segmented flow or flow injection sampling utilizes filter components which pass only lower frequency ultraviolet radiation interposed between a photoillumination source and the alkaline or acidified sample to first breakdown the strong complex cyanide from the sample without dissociation of thiocyanates. The system then distills the irradiated sample in the same apparatus by utilizing heat emitted from the photoillumination source to recover the total cyanides for measurement. Dissociable cyanides, as well as thiocyanate, are measured using the same apparatus by altering the filter components.

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