密度计法测定重水浓度

摘要: 用ＤＭＡ－６０密度计测定重水浓度，测量范围是０％－１００％（ｍｏｌ／ｍｏｌ）Ｄ＿２Ｏ，相对标准偏差＜０.０２％Ｄ＿２Ｏ，不需用标准样品绘制工作曲线，直接进样即可求出样品浓度。

Abstract: THE DETERMINATION OF HEAVY WATER CONCENTRATION BY DENSIMETER MIETHOD Zheng Yanwei Li Guihua（China Institute of Atomic Energy, Beijing 102413）ABSTRACT The determination of heavy water concentration with DMA-60 densimeter is described．The deter-mination range is0％─10o％（mol／mol）D_2O．The relative standard deviation is＜0．02％．There isno need to work curve with standard sample.The sample directly injects determination cell．Then theheavy water concentration is calculated.Key words heavy water heavy water concentration densimeter