论文部分内容阅读
本文采取以钙离子选择性电极作指示电极测定药物中钙离子含量的方法。详细考察了方法的适宜条件及干扰离子的影响,在三乙醇胺—盐酸离子强度缓冲介质中测定钙离子的含量,线性范围为5×10~(-5)～5×10~(-2)mol/L,本法用于测定保键钙中钙的含量,平均回收率为,100.24％、RSD=1.56％、n=5。方法简便、快速可靠。
In this paper, calcium ion selective electrode as the indicator electrode determination of calcium content in the drug content. The suitable conditions of the method and the effects of interfering ions were examined in detail. The content of calcium ions in the buffer solution of triethanolamine - hydrochloric acid was measured with a linear range of 5 × 10 ~ (-5) ~ 5 × 10 ~ (-2) mol / L, this method is used to determine the calcium content of the key calcium, the average recovery was 100.24%, RSD = 1.56%, n = 5. The method is simple, fast and reliable.