An amperometric method for the detection of amitrole, glyphosate and its aminomethyl-phosphonic acid metabolite in environmental waters using passive samplers.

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Show simple item record Sánchez-Bayo, F Hyne, RV Desseille, KL 2011-02-07T06:18:45Z 2010-08
dc.identifier.citation Analytica chimica acta, 2010, 675 (2), pp. 125 - 131
dc.identifier.issn 0003-2670
dc.identifier.other C1 en_US
dc.description.abstract The herbicides amitrole and glyphosate, and its metabolite aminomethyl-phosphonic acid (AMPA), in water samples have been directly analysed by high-performance liquid chromatography using an electrochemical (EC) detector. Limits of detection of 0.3 microg mL(-1) for glyphosate, 0.05 microg mL(-1) for AMPA and 0.03 microg mL(-1) for amitrole were comparable to those obtained by other authors using EC and also by liquid chromatography coupled to mass spectrometry, but the latter method requires derivatisation and pre-concentration of the sample whereas EC methods show similar sensitivity without the need of any derivatisation. The method was specifically designed to analyse extracts from passive samplers used for monitoring of polar herbicide residues in waters. To this purpose, three types of Empore disks were tested for their ability to adsorb and desorb these ionic, polar analytes. A procedure for their extraction from the membranes and reducing the interferences from other substances present in natural waters (i.e. humic acids) is described. The method is simple, does not require sophisticated equipment and is valid for the analysis and monitoring of herbicides residues using passive samplers.
dc.format Print-Electronic
dc.language eng
dc.relation.isbasedon 10.1016/j.aca.2010.07.013
dc.title An amperometric method for the detection of amitrole, glyphosate and its aminomethyl-phosphonic acid metabolite in environmental waters using passive samplers.
dc.type Journal Article
dc.parent Analytica chimica acta
dc.journal.volume 2
dc.journal.volume 675
dc.journal.number 2 en_US
dc.publocation Amsterdam, The Netherlands en_US
dc.identifier.startpage 125 en_US
dc.identifier.endpage 131 en_US SCI.Environmental Sciences en_US
dc.conference Verified OK en_US
dc.for 0301 Analytical Chemistry
dc.personcode 100467
dc.personcode 103649
dc.percentage 100 en_US Analytical Chemistry en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US en_US
dc.location.activity ISI:000281746400004 en_US
dc.location.activity ISI:000281746400004
dc.description.keywords Performance Liquid-Chromatography; Anion-Exchange Chromatography; Trace-Level Determination; Tandem Mass-Spectrometry; Ion-Pair; Coulometric Detection; Herbicide Glyphosate; Extraction; Pesticides; Ampa en_US
dc.description.keywords Performance Liquid-Chromatography
dc.description.keywords Anion-Exchange Chromatography
dc.description.keywords Trace-Level Determination
dc.description.keywords Tandem Mass-Spectrometry
dc.description.keywords Ion-Pair
dc.description.keywords Coulometric Detection
dc.description.keywords Herbicide Glyphosate
dc.description.keywords Extraction
dc.description.keywords Pesticides
dc.description.keywords Ampa
pubs.embargo.period Not known
pubs.organisational-group /University of Technology Sydney
pubs.organisational-group /University of Technology Sydney/Faculty of Science
pubs.organisational-group /University of Technology Sydney/Faculty of Science/School of the Environment

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