气态-紫外分光光度法测定水和废水中硫化物

Determination of Sulphide in the Water and Waste Water by Ultraviolet Spectrophotometry

本文介绍了在对样品无需进行预先吹气分离,显色的条件下,通过对硫化氢气体在气相状态下紫外分光光度法的测定来完成对水和废水中硫化物测定的方法。本方法不但操作简单、快速,而且准确性和精密度都优于标准化学方法,颜色、混浊及其它共存离子对本方法均无干扰。对于低含量样品的测定,本方法具有明显的优点。

A new method for determining the sulphide in water and waste water by ultraviolet spectropho-tometry is proposed. The operation of the method is simple. and its accuracy and precision are higher than those standard method. With this method, the deeply colour (or muddy )sample and sample of the lower containing sulphide can be directly determined and it is free from interferences.