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Chromatographic detection of bunte salts and disulphides

✍ Scribed by H. Nakamura; Z. Tamura

Book ID
104143923
Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
769 KB
Volume
104
Category
Article
ISSN
1873-3778

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✦ Synopsis

A spray method for selective detection of Bunte salts was developed. Bunte salts were cleaved with dithiothreitol (DTT) to hydrogen sulphite and the corresponding thiols, and the former was selectively detected with basic fuchsine reagent as violet-red spots with the aid of mercury(I1) chloride, which reacts with the thiols liberated and the excess amount of DTT to form mercaptides. The limit of detection of Bunte salts was 5 -10mg mole after thin-layer chromatography. Methods for the detection of disulphides were also developed.

Based on these methods, a stepwise method and a simultaneous method were devised for the detection of thiols, disulphides, Bunte salts and sulphite.

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