用三角烧瓶法测定饮用水中溶解性总固体的实验

Experiment of Detecting Total Dissolved Solids in Drinking Water Using Conical Flask Method

[目的 ]探讨三角烧瓶在测定生活饮用水中溶解性总固体的应用。 [方法 ]用三角烧瓶作容器 ,在电炉上蒸干后 ,于 180± 3℃下烘烤至恒重 ,测定溶解性总固体 ,并与国家标准检验方法比较。 [结果 ]两种方法无显著性差异 (P>0 .5 )。 [结论 ]用三角烧瓶测定饮用水中溶解性总固体快速 ,准确 。

[Objective]To explor the possibility of application of conical flask as an evaperation vessel in detecting the content of total dissolved solids in drinking water[Methods]The conical flask was placed on a electric stove to dry,and in electric oven to bake until the weight of conical flask was constant,at temperature of 180±3 ℃,and then was used to detect the total dissolved solids in drinking waterThe comparison between conical flask method and National Standard Method was made[Results]The levels of total dissolved solids obtained according to conical-flask method and National Standard Method revealed no significaut differences(P>05)[Conclusion]The detection of total dissolved solids in drinking water by conical flask method was rapid,accurate and practicabel