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Marques MN, Passos EA, da Silva MT, et al. Determination of glyphosate in water samples by IC. J Chromatogr Sci. 2009;47(9):822-4doi: 10.1093/chromsci/47.9.822.
Marques, M. N., Passos, E. A., da Silva, M. T., Correia, F. O., Santos, A. M., Gomes, S. S., & Alves, J. P. (2009). Determination of glyphosate in water samples by IC. Journal of chromatographic science, 47(9), 822-4. https://doi.org/10.1093/chromsci/47.9.822
Marques, M N, et al. "Determination of glyphosate in water samples by IC." Journal of chromatographic science vol. 47,9 (2009): 822-4. doi: https://doi.org/10.1093/chromsci/47.9.822
Marques MN, Passos EA, da Silva MT, Correia FO, Santos AM, Gomes SS, Alves JP. Determination of glyphosate in water samples by IC. J Chromatogr Sci. 2009 Oct;47(9):822-4. doi: 10.1093/chromsci/47.9.822. PMID: 19835697.
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J Chromatogr Sci. 2009 Oct;47(9):822-4. doi: 10.1093/chromsci/47.9.822.

Determination of glyphosate in water samples by IC.

Journal of chromatographic science

M N Marques, E A Passos, M T S da Silva, F O Correia, A M O Santos, S S Gomes, J P H Alves

Affiliations

  1. Instituto Tecnológico e de Pesquisas do Estado de Sergipe. Rua Campo do Brito no 371, Bairro São José-CEP 49020-380, Aracaju-SE, Brasil. [email protected]

PMID: 19835697 DOI: 10.1093/chromsci/47.9.822

Abstract

Agricultural development and its associated impacts on the environment are resulting in increasingly restrictive guidelines and legislation concerning the use of chemicals in agro-ecosystems. The herbicide glyphosate is widely used for weed control in both cultivated and uncultivated areas and is considered to show low toxicity to mammals. It is highly water-soluble, and its monitoring in surface, underground, and potable waters is recommended by the United States Environmental Protection Agency. This work presents a method for the inclusion of glyphosate determination within routine anion analysis using ion chromatography in water sampler without any kind of extraction, clean-up, or preconcentration step. The equipment used was a Dionex Model ICS-3000 ion chromatograph fitted with a 25-microL loop, Ion Pac AG19 guard and AS19 analytical columns, ASRS-300 (2 mm) suppressor, and conductivity detector. The method showed a linear response to glyphosate between 0.05-0.75 mg/L with a correlation coefficient of 0.999, and a detection limit below the maximum levels permitted by Brazilian legislation. Recoveries in the range 90-105% were achieved in tests using surface, well, potable, and ultrapure water samples.

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