电导法确定二元体系中离子的浓度  

Determination of the Concentration of Ions in a Binary System by Conductivity Method

作　　者：徐铜文[1] 杨伟华[1] 何炳林[2] 刘兆明 李善清 李旭娣 

机构地区：[1]中国科技大学应用化学系,合肥230026 [2]南开大学吸附分离功能高分子材料国家重点实验室,天津300071 [3]山东省海洋化工科学研究院

出　　处：《分析科学学报》2000年第1期45-48,共4页Journal of Analytical Science

基　　金：国家自然科学基金! ( No.2 99760 40 );中国科技大学校内青年基金

摘　　要：本文从电化学基本原理出发 ,推导出稀溶液中二元混合组分的电导与各组分当量浓度的关系 ,并通过测定纯组分的电导 -当量浓度标准曲线 ,来确定二元混合组分的标准曲线。在对其中一组分浓度确定的基础上 ,可很容易计算另一组分的浓度。该法简便、快速 ,有望成为化学分析和仪器分析的一个很好的补充。Based on the principle of electrochemistry, a relationship between conductivity of a binary solution and equivalent concentrations of the components was derived, which elucidates the standard curve of conductivity. The concentration in a binary system can be determined from those of their corresponding pure component, therefore, it allows us to evaluate the concentration of one component easily and fast with a predetermination of concentration of the other. This method is expected to become a useful supplement to chemical analysis or instrumentation.

关 键 词：二元体系 离子浓度确定 电导法 电导-浓度曲线 

分 类 号：O657.11[理学—分析化学]