摘要： 介绍了测定TGIC中总氯含量的2种方法,即化学滴定法和氧气燃烧瓶法。用这2种方法对5个样品分别进行了测试。试验结果表明:氧气燃烧瓶法测试的结果均大于化学滴定法,化学滴定法只能测得活性氯和无机氯的总量,而不能测得非活性氯的含量,测得的氯含量不能充分体现总氯含量的定义,而氧气燃烧瓶法测得的才是真正意义上的总氯含量。

关键词: TGIC, 总氯含量, 化学滴定法, 氧气燃烧瓶法

Abstract: This paper has described the determination of total chlorine content in TGIC by two methods namely, chemical titration method and oxygen flask combustion method. Five samples were tested with the two methods respectively. The results showed that the dala by oxygen flask combustion method were greater that by chemical titration method. By analyzing, it was found that only the total content of active chlorine and inorganic chlorine could be determined by chemical titration method, excluding the non-active chlorine content. Therefore. the chlorine content measured by chemical titration method was not the true meaning of total chlorine content as defined and the data by oxygen flask combustion method meets the defi-nition of total chlorine content chlorine content as defined; and the data by oxygen flask combustion method meets the definition of total chlorine content.

Key words: TGIC, total chlorine content, chemical titration method, oxygen flask combustion method