石膏的不同含量测定方法的比较  

Comparasion of Different Determination Methods for Gypsum

作　　者：刘元芬[1] 李祥[1] 

机构地区：[1]南京中医药大学,江苏南京210029

出　　处：《时珍国医国药》2005年第2期93-93,共1页Lishizhen Medicine and Materia Medica Research

基　　金：国家"十五"攻关课题(No.2001BA701A55-32)

摘　　要：目的:比较测定石膏含量的两种方法。方法:EDTA滴定法。结果:EDTA滴定中,钙黄绿素法较钙紫红素法更具有 灵敏性、准确性、可靠性。结论:石膏的含量测定应采用钙黄绿素法。Objective: To compare the two methods of the calcium content determination for Gypsum. Methods: EDTA titrations. Results: The experiment shows the calcein method in EDTA titrations has the advantage of sensity, high accuracy, and precision to Eriochrome Blue black R(EBBR). Conclusion:We should use the calcein methods in the calcium content determination for Gypsum.

关 键 词：石膏 钙离子 EDTA 

分 类 号：R284.2[医药卫生—中药学]