Microdetermination of cyanide ion by gas chromatography

Honma, Haruo; Suzuki, Keiko; Yoshida, Mutsuko; Yanashima, Hisako

doi:10.2116/bunsekikagaku.28.12_t56

Bunseki kagaku

1979

DOI: 10.2116/bunsekikagaku.28.12_t56

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Microdetermination of cyanide ion by gas chromatography

Haruo Honma

Keiko Suzuki

Mutsuko Yoshida

et al.

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1988

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A new colorimetric reagent for submicrogram determination of cyanide

Amlathe¹,

Gupta²

1988

Bulletin des Soc Chimique

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Cyanides and hydrogen cyanide. amongst the most toxic chemicals are used in various industries (1. 2).Cyanides act directly on the central nervous system and are also absorbed through skin. The maximum tolerable concentration of cyanide is 5 ms/mJ in air calculated as CN-(1). The WHO recommends that water containing more than 0.01 ppm of cyanide is harmful for common public uses ( 3 ) .Various instrumental methods are reported for its determination (4-9). Most common spectrophotometric methods are based on Konig reaction (10) developped by Alridge (7) and Epstein ( 8 ) .The reagents used have their own merits and demerits (8, 9. 11. 12). In the proposed method cyanide is determined by conversion into cyanogen bromide followed by its reaction with pyridine.The clutaconic aldehyde so formed is coupled with phloroglucinol forming a red violet dye measured at 540 nm. The optimum reaction conditions for full colour development have been studied and applied for the determination of cyanide in waste water and biological fluids. EXPERIMENTAL Apparatus

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A new colorimetric reagent for submicrogram determination of cyanide

Amlathe¹,

Gupta²

1988

Bulletin des Soc Chimique

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Microdetermination of cyanide ion by gas chromatography

Cited by 1 publication

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A new colorimetric reagent for submicrogram determination of cyanide

A new colorimetric reagent for submicrogram determination of cyanide

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