论文部分内容阅读
滴定分析法是化学定量分析法中最重要的一种分析方法。它是将一种已知准确浓度的试剂溶液(即滴定液)滴加到被测物质的溶液中,直到所加的试剂溶液与被测物质按化学式计量关系反应完全为止,根据滴加的试剂溶液的浓度和体积计算出被测物质的含量的方法。该法快速、准确、操作简便、应用广泛。依据滴定液与被测物质之间所发生的化学反应类型不同可将滴定分析法分为酸碱滴定法、沉淀滴定法、配位滴定法和氧化还原滴定法[1]。现代分析技术虽然在药品检
Titration analysis is the most important method of chemical quantitative analysis. It is a known concentration of the reagent solution (ie, titration solution) was added dropwise to the test substance solution until the reagent solution and the measured substance according to the chemical relationship between the measurement of the complete response, according to the dropping reagent The concentration and volume of solution to calculate the content of the test substance. The method is fast, accurate, easy to operate, widely used. Titration analysis can be divided into acid-base titration, precipitation titration, coordination titration and redox titration [1] according to the type of chemical reaction that occurs between the titrant and the substance to be tested. Although modern analytical techniques in drug testing