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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Determination of glyphosate and aminomethylphosphonic acid by capillary electrophoresis with indirect detection using pyridine-2,6-dicarboxylic acid or 3,5-dinitrobenzoic acid

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Author(s):
Moraes, Malu Pelegrinelli [1] ; Goncalves, Luis Moreira [2, 3] ; Pereira, Elisabete Alves [1]
Total Authors: 3
Affiliation:
[1] Univ Fed Sao Carlos UFSCar, Dept Fis Quim & Matemat, Sorocaba, SP - Brazil
[2] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Sao Paulo, SP - Brazil
[3] Univ Porto FCUP, Dept Quim & Bioquim, REQUIMTE LAQV, Fac Ciencias, Porto - Portugal
Total Affiliations: 3
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY; v. 98, n. 3, p. 258-270, 2018.
Web of Science Citations: 3
Abstract

Glyphosate (GlyP), a widely used nonselective herbicide, and aminomethylphosphonic acid (AMPA), GlyP's most common product of degradation in the environment, seem not to pose any major health threats. However, due to their persistence and the large quantities applied worldwide, they have become a source of concern. This justifies that their simple and swift determination is of considerable relevance. This work presents two indirect capillary electrophoretic methodologies using as chromophores 3,5-dinitrobenzoic acid (DNB) and pyridine-2,6-dicarboxylic acid (PDC), both associated with hexadecyltrimethylammonium bromide (CTAB). Although both methods showed suitable analytical parameters, DNB evidenced to be slightly superior. The recoveries values were close to 100%, correlation coefficients were above 0.99 and the limits of detection (LODs) values were below 0.5mg L-1 (2.9 mu mol L-1) and 0.4mg L-1 (3.6 mu mol L-1) for GlyP and AMPA, respectively. (AU)

FAPESP's process: 11/23286-1 - Analytical and environmental studies of the spatial, seasonal and temporal distribution of the low molar weight aldehydes in the atmosphere of the Sorocaba region
Grantee:Elisabete Alves Pereira
Support type: Regular Research Grants
FAPESP's process: 16/06926-0 - Development and application of new nanostructured chemical sensors and applications of new nanostructured chemical sensors based on biomimetic polymers
Grantee:Maria Del Pilar Taboada Sotomayor
Support type: Research Grants - Visiting Researcher Grant - International