Determination of glyphosphate and some related compounds by ion-exchange high performance liquid chromatography

G. Morovjan, J. Fekete, J. Repasi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Anion exchange liquid chromatographic methods are described for the determination of N-phosphonomethyl-glycine (PMG), which is known also as glyphosate, its monomethyl-ester (PMG-Met), N,N-bis(phosphonomethyl)-glycine (bis-PMG), N-methyl, N-phosphonomethyl-glycine (PMG-NMet) and glycine (Gly). Five different anion exchange columns were tested for the separation of the above mentioned compounds. Effects of the eluent pH, ionic strength and organic solvent composition were studied. It was found that only some of the tested columns were applicable for the separation of the PMG and PMG-NMet critical pair, which may be due to the different structure, the ratio of the hydrophobic and hydrophilic surface area of the ion exchanger. Analytical performance of the methods was investigted. Some examples are also shown for the application of these described methods.

Original languageEnglish
Pages (from-to)3219-3232
Number of pages14
JournalJournal of Liquid Chromatography
Volume18
Issue number16
Publication statusPublished - 1995

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glyphosate
Ion Exchange
High performance liquid chromatography
Ion exchange
High Pressure Liquid Chromatography
Anions
Ion exchangers
Ionic strength
Osmolar Concentration
Glycine
Organic solvents

ASJC Scopus subject areas

  • Molecular Medicine

Cite this

Determination of glyphosphate and some related compounds by ion-exchange high performance liquid chromatography. / Morovjan, G.; Fekete, J.; Repasi, J.

In: Journal of Liquid Chromatography, Vol. 18, No. 16, 1995, p. 3219-3232.

Research output: Contribution to journalArticle

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