TITLE:
Study of the Reaction Derivatization Glyphosate and Aminomethylphosphonic Acid (AMPA) with N,O-Bis(trimethylsilyl)trifluoroacetamide
AUTHORS:
T. C. P. G. Catrinck, Maria Clara Santana Aguiar, Amanda Dias, Flaviano Oliveira Silvério, Paulo Henrique Fidêncio, Gevany Paulino de Pinho
KEYWORDS:
Glyphosate; GC-MS; Derivatization; BSTFA
JOURNAL NAME:
American Journal of Analytical Chemistry,
Vol.4 No.11,
November
27,
2013
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.