空气中氯测定方法的研究

Study on Determination Method of Chlorine in Air

采用甲基橙光度法是氯的特殊反应,盐酸和氯化钠不干扰测定,该法简便、快速、灵敏。对该法中的几个关键问题进行了研究:a）最低检出限和最低检出浓度;b）吸收原液和吸收液的配制;c）吸收效率;d）硫酸的加入量;e）样品放置时间、温度、阳光直射对样品的影响;f）标准管的稳定性。

The application of sepctrophotometry made the special reaction of chlorine. HC1 and NaCl didn't interfere the detecting. This method was simple,rapid,and seutive. Some key points about this method, a)The minmin detecting limit and the minmin detecting comentration. b)The compound of original absorbing solation and absorbing solution. c)The efficiency of absorbing. d)The supply vomlum of sulphuric. e)The influence of dispose time temperature and sunlight radiation on the sample, f )The analyzing about stability of standard tube and so on. This work procides a reference of detecting.