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Determination of azoxystrobin and its impurity in pesticide formulations by liquid chromatography.
Marczewska, Patrycja; Plonka, Marlena; Rolnik, Joanna; Sajewicz, Mieczyslaw.
Afiliação
  • Marczewska P; Pesticide Quality Testing Laboratory, Institute of Plant Protection - National Research Institute, Sosnicowice, Poland.
  • Plonka M; Department of General Chemistry and Chromatography, Institute of Chemistry, University of Silesia, Katowice, Poland.
  • Rolnik J; Pesticide Quality Testing Laboratory, Institute of Plant Protection - National Research Institute, Sosnicowice, Poland.
  • Sajewicz M; Pesticide Quality Testing Laboratory, Institute of Plant Protection - National Research Institute, Sosnicowice, Poland.
J Environ Sci Health B ; 55(7): 599-603, 2020.
Article em En | MEDLINE | ID: mdl-32253976
A method was developed for the simultaneous qualitative and quantitative determination of azoxystrobin and its relevant impurity (Z)-azoxystrobin using high performance liquid chromatography with diode array detector (HPLC-DAD) in suspension concentrate (SC) pesticide formulations, with the aim of the product quality control. Method validation was realized according to SANCO/3030/99 rev. 5. The proposed method was characterized by acceptable accuracy and precision. The repeatability expressed as ratio standard deviation (%RSD) to relative standard deviation (%RSDr) was lower than 1, whereas individual recoveries were in the range of 97-103% and 90-110% for azoxystrobin and (Z)-azoxystrobin, respectively. The limit of quantification (LOQ) for the impurity ((Z)-azoxystrobin) amounted to 0.3 µg mL-1 and was acceptable because it was lower than the maximum permitted level according to Commission Implementing Regulation (EU) No 703/2011 of 20 July 2011 for the active substance (azoxystrobin) being 25 g kg-1 of the azoxystrobin content found. The method described in this paper is simple, precise, accurate and selective as well as represents a new and reliable way of simultaneous determination of azoxystrobin and its relevant impurity in formulated products.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pirimidinas / Cromatografia Líquida de Alta Pressão / Estrobilurinas Tipo de estudo: Qualitative_research Idioma: En Revista: J Environ Sci Health B Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Polônia País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Pirimidinas / Cromatografia Líquida de Alta Pressão / Estrobilurinas Tipo de estudo: Qualitative_research Idioma: En Revista: J Environ Sci Health B Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Polônia País de publicação: Reino Unido