Zhao L, Fan D F
Zhejiang Traditional Chinese Medicine Research Institute, People's Republic of China.
J AOAC Int. 1996 Mar-Apr;79(2):587-8.
A gas chromatographic method is described for determination of chlorothalonil residues in leaves and roots of Scrophularia and in soil. Samples were extracted with acetone and cleaned up on a Florisil column. Chlorothalonil residues are chromatographed directly on a glass column of 1.5% OV-17 and 2% QF-1 coated on 80-100 mesh Chromosorb W (HP) support and measured with a 63Ni electron capture detector. Detection limits are 0.001 ppm for leaf, 0.005 ppm for root, and 0.001 ppm for soil.
描述了一种气相色谱法，用于测定玄参叶和根以及土壤中的百菌清残留量。样品用丙酮提取，并在弗罗里硅土柱上进行净化。百菌清残留直接在涂有1.5% OV - 17和2% QF - 1的80 - 100目Chromosorb W (HP)载体的玻璃柱上进行色谱分析，并用63Ni电子捕获检测器进行测定。叶的检测限为0.001 ppm，根为0.005 ppm，土壤为0.001 ppm。
