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Analytical control of the production of herbicides and growth regulators glyphosate and glyphosine by capillary isotachophoresis
Author(s) -
Křivánková Ludmila,
Boček Petr
Publication year - 1986
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/elps.1150070210
Subject(s) - isotachophoresis , chemistry , glyphosate , triethanolamine , chromatography , glycine , aminomethylphosphonic acid , iminodiacetic acid , formic acid , analytical chemistry (journal) , biochemistry , chelation , inorganic chemistry , metabolite , amino acid , biology , electrolyte , electrode , agronomy
A method is described for direct analysis of the reaction mixtures of the production of the herbicide glyphosate and the growth regulator glyphosine by capillary isotachophoresis providing simultaneous determination of the products N‐phosphonomethyl‐glycine and N.N‐bis(phosphonomethyl)glycine as well as of all important reaction components ‐ sulfuric, formic, phosphorous, phosphoric, hydroxyacetic, nitrilotriacetic, iminodiacetic and N‐phosphonomethyliminodiacetic acids and glycine. The method is suitable for the analyses both of the final products and of mother liquors, where the maximum ratio of the concentrations ranges within 1:100. The time of analysis is dependent on the sample composition and ranges within 5–20 min. relative standard deviation of a single determination being less than 4 rel. %.