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A New Spray Reagent for Sulphonamides on Silica Gel Pyridinium Tungstoarsenate Impregnated Layers

 

作者: S.P. Srivastava,   V.K. Dua,   L.S. Chauhan,   A.K. Mittal,  

 

期刊: Analytical Letters  （Taylor Available online 1979）
卷期: Volume 12, issue 3  

页码: 235-240

 

ISSN:0003-2719

 

年代: 1979

 

DOI:10.1080/00032717908082526

 

出版商: Taylor & Francis Group

 

关键词: sulphonamides;silica gel;TLC separation

 

数据来源: Taylor

 

摘要:

A mixture of 1 percent aqueous solution of K2S2O8and 0.01 M aq. AgNO3in the ratio of (5:1) has been found to be a very sensitive spray reagent for the detection of sulphonamides in ng range on silica gel plates impregnated with pyridinium tungstoarsenate ion exchanger. The suitable developing solvent systems for these separations found are benzene-methyl alcohol-ethyl acetate- acetic acid-water (40:10:10:5:2) and benzene-ethyl acetate (20:30).

 

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