期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2015

41

2

209-213

10.13331/j.cnki.jhau.2015.02.017

湖南省科学技术厅项目（2006FJ4266）；

本校为第一机构

为了全面评价土壤质量安全,及时、准确地测量土壤中残留农药的种类和含量水平,采用添加回收率试验,借助气相色谱–电子捕获检测器(GC–ECD),建立了同时分析和检测己唑醇、稻瘟酰胺、螺螨酯和苯醚甲环唑在土壤中残留量的方法。结果表明:土壤样品用乙腈经超声波提取15 min,再用弗罗里硅土柱净化后(用50 mL乙腈分次淋洗),在优化后的气相色谱条件(初始温度180 ℃,保持3 min,以20 ℃/min升至260 ℃,保持7 min,进样口温度280 ℃,检测器温度300 ℃,载气(N2)流速为5 mL/min,尾吹流速30 mL/min,进样量1 μL,分流比20∶1)下对土壤样品进行分析检测,当4种农药的质量浓度为0.02~1.00 mg/L时,4种供试农药的浓...

In order to comprehensively evaluate the safety of soil quality and to measure type and amount of pesticide residual in soil in a fast and accurate way, a new method for determining hexaconazole, fenoxanil, spirodiclofen and difenoconazole at one time in soil was established by employing fortified recovery experiment and gas chromatography with electron capture detection（GC–ECD）. Soil samples were firstly extracted with acetonitrile and ultrasonic in 15 minutes, then cleaned up with florisil-phase extraction（leaching with 50 m L of acetonit...