摘要
利用高效液相色谱-串联质谱技术,采用不同的前处理方法处理土壤、植株和水样品,建立了环境中烟嘧磺隆残留的分析方法。水样品直接用C18固相萃取小柱富集和净化;土壤样品和玉米植株样品以乙腈为提取剂,振荡提取,氨基柱净化。样品中烟嘧磺隆的残留量采用UPLC-MS/MS测定。烟嘧磺隆在0.01~1mg/L范围内线性良好,相关系数为0.999 9。水、土壤和植株的平均加标回收率分别为81.6%~90.9%、107.9%~111.5%、99.0%~105.2%,相对标准偏差在1.7%~15.7%之间。
AUPLC-MS/MS analytic method was established to determine nicosulfuron residue in water, soil and corn strawby using a couple ofdifferent pretreatment methods. Residues in water were enriched and purified by C18 Solid Phase Extraction Microcolumn; Soil samples and Corn straw samples were extracted by acetonitrile and purified by a SPE-Amino. Then, nicosulfuron residues in samples were determined by UPLA-MS/MS. The linear range was 0.01 ~1mg/L with correlation coefficients of 0.999 9. The recoverieswere in the range of 81.6%~90.9%, 107.9%~111.5%, 99.0%~105.2%, with relative standarddeviations(RSDs) of 1.7%~15.7% for water,soil and corn straw samples, respectively.
出处
《农药科学与管理》
CAS
2015年第11期43-45,共3页
Pesticide Science and Administration
