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Study of the Reaction Derivatization Glyphosate and Aminomethylphosphonic Acid (AMPA) with <i>N</i>,O-Bis(trimethylsilyl)trifluoroacetamide
Department of Chemistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil
Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazi
Department of Chemistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil
Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
- 1 Department of Chemistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil
- 2 Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
- 3 Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
- 4 Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazi
- 5 Department of Chemistry, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, Brazil
- 6 Institute of Agricultural Sciences, Universidade Federal de Minas Gerais, Montes Claros, Brazil
American Journal of Analytical Chemistry·Volume 04 (2013)·Pages 647–652·Published 11 November 2013·DOI10.4236/ajac.2013.411077
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Abstract
This work aimed to study the derivatization unprecedented of glyphosate and AMPA solutions using N ,O-bis (trimethylsilyl)trifluoroacetamide (BSTFA) combined with trimethylchlorosilane (TMCS), evaluating the composition of the reaction medium, use of ultrasound, volume of BSTFA:pyridine and pH of the reaction medium. From this study it was inferred that the reaction medium was composed of BSTFA:pyridine in ratio 60:100, respectively, without ultrasonic vibration and pH adjustment that provide optimal conditions for analysis by GC-MS. Furthermore, the methodology used was simple and fast, and that was the most practical method commonly used.
KeywordsGlyphosateGC-MSDerivatizationBSTFA
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