Analysis of degradation products of esfenvalerate by SBSE/HPLC-UV/DAD using fractional factorial design

Química Nova

Universidade de São Paulo, São Carlos, Brasil¹  Universidade de São Paulo, São Paulo, Brasil¹  Colombo, Renata¹  Yariwake, Janete H.¹  Lanza, Marcos R. V.¹ 

关键词: esfenvalerate;    SBSE/LC-UV/PAD;    factorial experimental design.;   

DOI  :  10.5935/0100-4042.20140089

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

A simple procedure based on stir bar sorptive extraction and high-performance liquid chromatography-ultraviolet/photodiode array detection (SBSE/LC-UV/PAD) to determine intermediates and by-products of esfenvalerate is described. The influence of organic modifier, ionic strength, extraction time, temperature and pH were simultaneously evaluated by using a factorial experimental design. The utilization of different organic solvents and desorption times were also investigated to establish the optimal conditions for SBSE liquid desorption. Among the ten different peaks (intermediates and by-products) detected after degradation of esfenvalerate, eight (including 3-phenoxybenzoic acid and 3-phenoxybenzaldehyde) were successfully extracted by SBSE under the optimized conditions.

【 授权许可】

Unknown