关键词: 莠去津;液相色谱质谱联用;饮用水;代谢物

Abstract:

A sensitive LCMS/MS method for simultaneously analyzing atrazine and its 6 metabolites in cattle drinking water was established. The samples were enriched and purified by MCX solidphase column, determined by LCMS/MS, and quantified by outer standard. The results showed that the linear range spanned from 0.4 to 100 μg/L with correlation index r2 greated than 0.99. At the concentration range of 0.03～3 μg/L, except the recovery of desisopropyl2hydroxy was 6417%, others were 71.31%~116.67% with relative standard deviations ranging from 097％ to 12.03%. The limits of detection (LOD) of 7 substances analyses were 0.1 μg/L. Those indicated the method was rapid, costeffective and suitable for water sample analysis.

Key words: atrazine, HPLCMS, drinking water, metabolites