Presence of carbamate pesticides in environmental waters from the northwest of Mexico: determination by liquid chromatography
详细信息 查看全文
- 作者：Garcí ; a de Llasera ; M.P. ; Bernal-Gonzá ; lez ; M.
- 关键词：carbamate pesticides ; liquid chromatography ; on-line solid-phase extraction ; water pollution ; multi-residue analysis ; fluorescence detection ; diode array detection
- 刊名：Water Research
- 出版年：2001
- 出版时间：June, 2001
- 年：2001
- 卷：35
- 期：8
- 页码：1933-1940
- 全文大小：177 K
文摘
A study on the presence of carbamate pesticides, namely aldicarb, aldicarb sulfoxide, baygon, benthiocarb, carbofuran, 3-hydroxycarbofuran, carbaryl, desmedipham, methiocarb, methomyl, thiodicarb, oxamyl, and propham was made in ground and surface waters from an agricultural zone of the Yaqui Valley located in northwest Mexico. Trace determinations were made by liquid chromatography (LC) with post-column fluorescence detection (EPA method 531.1) or LC-diode array UV detection coupled on-line to a solid-phase extraction (SPE) system and using a 13×4.6mm i.d. precolumn and a 150×4.6mm i.d. analytical column, both packed with a C18 silica. Results indicated that the level of contamination with methiocarb was 5.4μg/L in a groundwater sample and that for 3-hydroxycarbofuran was 18μg/L in a surface water sample. This study provides the basis for a future monitoring program.