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我们对苏联专利CCP№127,07O介绍的测定大气中微量氯的方法作了研究。摸索出胆碱碘化物的合成方法以及对氨基二甲苯胺盐酸盐的提纯和保存方法。对于由此显色剂的显色条件、碘——胆碱碘化物的保存性质、纸上采样以及对本法的干扰等做了试验,设计了从采样到比色的详细手续,同正联甲苯胺法作了比较,得到了满意的结果。本法完全达到了原专利所列出的数据标准并适用于工厂以及城市大气污染区大气中微量氯的测定。
We studied the Soviet Union patent No. 127, 07O introduced the determination of trace chlorine in the atmosphere. Find out the synthesis method of choline iodide and the method of purification and preservation of aminodimethylamine hydrochloride. Experiments were conducted on the conditions of the color development of the developer, the preservation property of iodine-choline iodide, the sampling on the paper and the interference with the method, and the detailed procedures from sampling to colorimetry were designed. Aniline method was compared, and got satisfactory results. This Law fully meets the data standards listed in the original patent and applies to the determination of trace chlorine in the atmosphere of the factories and urban air pollution areas.