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目前还没有一种方法能将空气中同时存在的几种杀虫剂或结构相似的物质使之个别分离后再行测定。例如1605与1600、硫联与硫离的乐果,采用一般的比色方法是不能将它们分别测定的。气相色谱分离效能很高,但应用这种方法,一方面需要有特殊的仪器与设备;另一方面应用这种方法来分离和测定空气中的杀虫剂尚存在着一些具体的问题和困难。所以在这一方面的应用,尚有待于进一步研究。自从有了纸上层析法以来,其应用范围已很广泛。斯登来(H.J.Stanley)曾介绍应用这种方法以分析空气中的铅、鉍及镉等几种金属。但应用这种方法作为分离和测定空气中的杀虫剂及其它的有机物质则尚未引
At present, there is no method to determine the presence of several insecticides or structurally similar substances in the air at the same time after they have been separately separated. For example, 1605 and 1600, sulfur and sulfur from the dimethoate, using the general colorimetric method is not their separate determination. Gas chromatographic separation is highly efficient, but the application of this method requires special equipment and equipment on the one hand. On the other hand, there are still some specific problems and difficulties in using this method to separate and determine insecticides in the air. Therefore, the application in this area remains to be further studied. Since paper chromatography has been applied, its range of applications has been very wide. H.J. Stanley introduced the use of this method to analyze metals such as lead, bismuth and cadmium in the air. However, the use of this method as a separation and determination of insecticides and other organic substances in the air has not been cited