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本法采用电子捕获检测器气相色谱法,用非极性固定“OV-101”测定666及DDT各异构体合量与用极性固定液“OV-17”测定666及DDT各异构体之分量进行了比较,实验证明两者测得的结果是一致的。只经过简单地萃取,不用净化和浓缩,以小体积进样,方法快速,简单,灵敏。仪器灵敏度666为9.5×10~7HZ·ml/mg;DDT为1.45轻10~(12)HZ·ml/mg;取250ml水样测量下限666为0.5ng/L,DDT为0.16ng/L。
This method uses electron capture detector gas chromatography with a non-polar fixed “OV-101” Determination of 666 and DDT isomers and the amount of the polar fixative “OV-17” measured 666 and DDT isomers The components were compared, the experiment proved that the two measured results are consistent. Only a simple extraction, without purification and concentration, small injection size, the method is fast, simple and sensitive. Instrument sensitivity 666 9.5 × 10 ~ 7HZ · ml / mg; DDT 1.45 light 10 ~ (12) HZ · ml / mg; take 250ml water sample lower limit of 666 0.5ng / L, DDT of 0.16ng / L.