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Spectrofluorimetric determination of cyanide and thiocyanate based on a modified König reaction in a flow-injection system

✍ Scribed by Akira Tanaka; Kazuhiro Deguchi; Toshio Deguchi

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
494 KB
Volume
261
Category
Article
ISSN
0003-2670

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✦ Synopsis

Cyamde and thlocyanate were determmed spectrofluorlmetrlcally by the lsomcotnnc acid-barbltunc acid (mod-Ifled Komg) reactlon method The resultmg solutlon was excited at 605 nm and the fluorescence was measured at 620 nm The Intermediate was also fluorescent, the excltatlon and emlsslon wavelengths were 527 nm and 556 nm The flow-mlectton procedure has a hnear cahbratlon range of O-50 PM cyamde (or 40 PM thlocyanate), detectlon hmlts of 30 nM for both amons and a sample throughput of 30 h-' The relative standard devlatlon IS 095% for ten determmatlons of 1 PM cyamde

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