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

Quimica nova

Primel, Ednei G.¹  Martel, Samile²  Kurz, Márcia H. S.²  Zanella, Renato²  Gonçalves, Fábio F.²  Adaime, Martha B.²  Machado, Sérgio L. de O.³ 

[1] Fundação Universidade Federal do Rio Grande, Rio Grande, Brasil;Universidade Federal de Santa Maria;Universidade Federal de Santa Maria, Santa Maria, Brasil

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 isdescribed for the determination of the herbicide bispyribac-sodium in surfacewater, especially from river and irrigated rice water samples. The method involvesextraction in solid phase and quantification by high performance liquid chromatographywith diode array detection (HPLC-DAD). After optimization of the extractionand separation parameters, the method was validated. The method presented averagerecoveries of 101.3 and 97.7%, under repeatability and intermediate precisionconditions, respectively, with adequate precision (RSD from 0.9 to 7.5%). Themethod was applied for the determination of bispyribac-sodium in surface watersamples with a limit of detection of 0.1 μgL-1.

【 授权许可】

CC BY