配位滴定法测定白贝齿中碳酸钙的含量

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英文篇名：Content Determination of Calcium Carbonate in Cowry Shell by Complex-formation Titration 作者：孟庆庆 ; 特布新 ; 王秀兰 英文作者：Meng Qingqing;Tebuxin;Wang Xiulan;Inner Mongolia Research Institute of Traditional Mongolian Medicine Engineering Technology;Mongolian Medicine College,Inner Mongolia University For The Nationlities; 关键词：白贝齿 ; 煅白贝齿 ; 配位滴定法 ; 含量测定 英文关键词：Cowry Shell;;Calcined Cowry Shell;;Complex-formation Titration;;Content Determination 中文刊名：YTCT 英文刊名：Asia-Pacific Traditional Medicine 机构：内蒙古蒙医药工程技术研究院;内蒙古民族大学蒙医药学院; 出版日期：2019-05-05 出版单位：亚太传统医药 年：2019 期：v.15;No.213 基金：《内蒙古蒙药材标准》(1986版)质量标准提升研究项目(ZLBZ2016023) 语种：中文; 页：YTCT201905025 页数：3 CN：05 ISSN：42-1727/R 分类号：87-89

摘要

目的:建立配位滴定法测定不同产地白贝齿及煅白贝齿中碳酸钙(CaCO_3)的含量。方法:采用乙二胺四醋酸二钠配位滴定法对碳酸钙的含量进行测定。结果:碳酸钙回归方程为y=188.36x+1.960 1,r=0.999 5,表明碳酸钙的取样量在0.1～0.2g范围内,与乙二胺四醋酸二钠滴定液(0.05mol/L)的消耗体积具有良好的线性关系。平均回收率为101.05%(RSD=0.66%)。结论:该实验所采用的测定方法结果准确、可靠,可用于样品测定,为白贝齿的研究提供了参考。
        Objective:To establish a method for the determination of the content of cowry shell and the content of calcined cowry shell in different habitats by complex-formation titration method.Methods:The content of calcium carbonate(CaCO_3)was determined by disodium EDTA.Results:The regression equation of calcium carbonate was y=188.36 x+1.9601,r=0.9995,indicating that the sample volume of calcium carbonate was in the range of 0.1～0.2 g,and the titration solution with ethylenediamine tetraacetic acid disodium(0.05 mol/L)Consumption volume has a good linear relationship.The average recovery was 101.05%(RSD=0.66%).Conclusion:The experimental method used in this experiment is accurate and reliable,and can be used for the determination of samples,which provides a reference for the research progress of cowry shell.

引文

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