M. V. Khrolenko and P. P. Wieczorek, “Determination of Glyphosate and Its Metabolite Aminomethylphosphonic Acid in Fruit Juices Using Supported-Liquid Membrane Preconcentration method with High-Performance Liquid Chromatography and UV Detection after Derivatization with p-Toluenesulphonyl Chloride,” Journal of Chromatography A, Vol. 1093, No. 1-2, 2005, pp. 111-117.
http://dx.doi.org/10.1016/j.chroma.2005.07.062

has been cited by the following article:

• 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.