Direct Determination Of Glyphosate
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. Quantification of Glyphosate and AMPA by HPLC-ICP-MS/MS and HPLC-DAD: A Comparative Study
In this work, the direct determination methodology of glyphosate and aminomethylphosphonic acid (AMPA) by high performance liquid chromatography (HPLC) using inductively coupled plasma with triple quadrupole mass spectrometer (ICP-MS/MS) was compared with the conventional method using diode array detector (HPLC-DAD). Both methods were selective, but the chro
J. Braz. Chem. Soc.. Publicado em: 2020-02
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2. Direct Determination of N-Nitrosoglyphosate in Technical Glyphosate Using Ion Chromatography with UV Detection
The official method for analyzing N-nitrosoglyphosate (NNG), a relevant impurity, in glyphosate matrix demands complicated instrumentation and operating conditions not available in many laboratories. In this work, we developed a direct, simple, selective and sensitive ion chromatography (IC) method with UV detection for the determination of NNG in samples of
J. Braz. Chem. Soc.. Publicado em: 2017-07
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3. Development of methodology simple, fast and without the clean-up step for determination of glyphosate in environmental samples of water and soil by HPLC / UV-VIS / Desenvolvimento de metodologia simples, rápida e sem etapa de clean-up para determinação de glifosfato em amostras ambientais de água e solo por HPLC/UV-VIS
Glyphosate, N-(phosphonometil)glycine, is a systemic herbicide and post-emergent with great efficiency in the removal of weeds, featuring low cost, which is reflected on its wide application. Due to this fact, special care in order to not contaminate the environment has to be attend, since there is evidence of deleterious effects on the environment after its
Publicado em: 2009
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4. Determinação de paraquat e glifosato em amostras de Cannabis sativa encaminhadas para exame pericial / Determination of paraquat and glyphosate in Cannabis sativa samples seizured by police department.
In the present work, two methods were developed and validate, aiming to determinate the herbicides paraquat and glyphosate and his major metabolite AMPA in seizured marijuana samples by the police in Campinas, São Paulo. The determination of herbicides in confiscated samples is necessary and important to alert the real risk of marijuana can offer to the use
Publicado em: 2008
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5. Determinação voltamétrica do herbicida glifosato em águas naturais utilizando eletrodo de cobre
The aim of this work was to investigate the copper electrode behavior in the voltammetric determination of glyphosate. The best conditions for this determination are phosphate buffer 0.05 mol L-1 and pH 7.3, and the peak potential is observed at 187 mV. LD and LQ values are 59 µg L-1 e 196 µg L-1, respectively. A water sample was analysed for glyphosate an
Química Nova. Publicado em: 2007