对食盐碘的测定所用次氯酸钠溶液的探讨

Discussion on Sodium Hypochlorite Solution in the Measurement of Table Salt Iodic

本文介绍了次氯酸钠溶液特性和有效氯的概念,对食盐碘的测定所用次氯酸钠溶液的理解提出了个人看法。

This paper introduces the features of sodium hypochlofite solution and the concept of available chlorine, and also raises the specific opinion of the understanding of sodium hypochlorite solution which be used in the measurement of table salt iodic. Different laboratories may have ineonformity towards original fluid available chlorine since the instability of sodium hypochlorite. As a result, although the same preparation methods can be used, the content of available chlorine in operating fluid may different, and also may cause worse reproducibility of the testing result.