Rapid and sensitive determination of ethylenediaminetetraacetic acid and diethylenetriaminepentaacetic acid in water samples by ion-pair reversed-phase liquid chromatography--electrospray tandem mass spectrometry

Quintana, J. B.; Reemtsma, T.

doi:10.1016/j.chroma.2007.01.044

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Rapid and sensitive determination of ethylenediaminetetraacetic acid and diethylenetriaminepentaacetic acid in water samples by ion-pair reversed-phase liquid chromatography--electrospray tandem mass spectrometry

A new method is presented for the quantitative determination of ethylenediaminetetraacetic acid (EDTA) and diethylenetriaminepentaacetic acid (DTPA) from aqueous samples without an enrichment step. It consist of the formation of the Fe(III) complexes of EDTA and DTPA, liquid-chromatography with a volatile ion-pairing agent and determination by electrospray ionization-tandem mass spectrometry (ESI-MS/MS). Limits of quantification (LOQ) of 1.0 and 0.6 microgL(-1) for EDTA and DTPA were obtained, allowing the direct injection of most aqueous environmental samples without any preceding enrichment. With a more recent mass spectrometer, the LOQ could be further decreased by almost one order of magnitude. Parallel analysis of real samples by a standardized method employing enrichment, derivatization and GC-MS analysis yielded comparable results. The method was applied to the determination of both complexing agents in several wastewater, surface water and drinking water samples, showing that EDTA is an omnipresent contaminant in partially closed water cycles

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Erschienen in:: Journal of chromatography / A
Vol. 1145, H. 1-2 (2007), S. 110-117
Band:: 1145
Heft:: 1-2
Datum der Veröffentlichung:: 2007
DOI:: 10.1016/j.chroma.2007.01.044
Sprache:: Englisch
Ressourcentyp:: Text
Schlagwörter:: ACID; AGENT; AGENTS; analysis; article; Berlin; chemical; chemistry; Chromatography,Liquid; COMPLEX; COMPLEXES; contaminant; DERIVATIZATION; Determination; Drinking; drinking water; DRINKING-WATER; Edetic Acid; ENRICHMENT; ENVIRONMENT; Gas Chromatography-Mass Spectrometry; GC-MS; Geography; instrumentation; limit; Liquid Chromatography; LIQUID-CHROMATOGRAPHY; Mass Spectrometry; MASS-SPECTROMETRY; method; methods; Molecular Structure; Pentetic Acid; pollutants; QUANTIFICATION; quantitative; Reproducibility of Results; Research; SAMPLES; Spain; SPECTROMETRY; Spectrometry,Mass,Electrospray Ionization; SURFACE; surface water; SURFACE-WATER; Tandem Mass Spectrometry; WATER; Water Pollutants,Chemical; WATER SAMPLES
DDC-Sachgruppe der DNB:: 600 Technik
Link URL:: http://www.sciencedirect.com/science/article/pii/S0021967307000921
Einrichtung:: Bundesinstitut für Risikobewertung, Bundesinstitut für Risikobewertung (bis Juni 2014), Abteilung 6 - Chemikaliensicherheit (bis Juni 2014)