Rapid and accurate hplc-dad method for the determination of the herbicide bispyribac-sodium in surface water, and its validation

Química Nova

Martel, Samile¹  Fundação Universidade Federal do Rio Grande, Rio Grande, Brasil¹  Kurz, Márcia H. S.¹  Universidade Federal de Santa Maria, Santa Maria, Brasil¹  Zanella, Renato¹  Primel, Ednei G.¹  Machado, Sérgio L. de O.¹  Gonçalves, Fábio F.¹  Universidade Federal de Santa Maria¹  Adaime, Martha B.¹ 

关键词: pesticide;    river water;    irrigation water.;   

DOI  :  10.1590/S0100-40422009000600018

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

A new method is described for the determination of the herbicide bispyribac-sodium in surface water, especially from river and irrigated rice water samples. The method involves extraction in solid phase and quantification by high performance liquid chromatography with diode array detection (HPLC-DAD). After optimization of the extraction and separation parameters, the method was validated. The method presented average recoveries of 101.3 and 97.7%, under repeatability and intermediate precision conditions, respectively, with adequate precision (RSD from 0.9 to 7.5%). The method was applied for the determination of bispyribac-sodium in surface water samples with a limit of detection of 0.1 μg L-1.

【 授权许可】

Unknown