PROCESS FOR SELECTIVE COMPLEXOMETRIC ANALYSIS OF N-PHOSPHOROMETHYL-GLYCINE, N-CARBOXYMETHYL-N-PHOSPHONOMETHYL-GLYCINE AND N,N-BISPHOSPHONO-METHYL-GLYCINE

A process is provided for the quantitative selective complexometric analysis of a sample. First and second aliquot parts of a sample containing N-phosphonomethyl-glycine, N-carboxymethyl-N-phosphonomethyl-glycine or N,N-bis-phosphonomethyl-glycine; or N-phosphonomethyl-glycine and N,N-bis-phosphonom...

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Bibliographische Detailangaben
Hauptverfasser:	REPASI, JANOS
Format:	Patent
Sprache:	eng
Schlagworte:	GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TESTING
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Beschreibung
Zusammenfassung:	A process is provided for the quantitative selective complexometric analysis of a sample. First and second aliquot parts of a sample containing N-phosphonomethyl-glycine, N-carboxymethyl-N-phosphonomethyl-glycine or N,N-bis-phosphonomethyl-glycine; or N-phosphonomethyl-glycine and N,N-bis-phosphonomethyl-glycine; or N-phosphonomethyl-glycine and N-carboxymethyl-N-phosphonomethyl-glycine are taken. The first aliquot part is titrated with a bismuth volumetric solution at a Ph=1.8-2.5 in the presence of a methylethymol blue indicator. The second aliquot part is titrated with a copper volumetric solution at a Ph=8-10 in the presence of a murexide indicator. Two end point values are obtained and compared. The difference between these two values result in the determination of the content of N-phosphonomethyl-glycine in the sample.