【摘要】 建立了化学试剂四氟硼酸四(乙腈)铜(I)中硼和铜含量的测定方法。比较了电位滴定法测硼、原子吸收分光光度法和碘量电位滴定法测定铜含量所表征该试剂纯度的差异。结果表明,电位滴定法测硼、碘量电位滴定法测定铜两种方法的相对标准偏差均近2%,前者的样品加标平均回收率97.33%后者100.2%,两种方法没有显著差异,但碘量电位滴定法简单易行。更多还原

【Abstract】 A method for determination of the content of both boron and copper in the tetrakis(acetonitrile) copper(I) tetrafluoroborate chemicals was established.The difference of the chemicals purity was compared by the boron content determined via the potentiometric titration(PMT) and the copper content determined via the flame atomic absorption spectrometer(FAAS) and the iodometric-potentiometric titration(IMPT) method,respectively.The results showed that the values of the relative standard deviation of PMT and IMPT methods were nearly 2%.And the average recovery rate of the former was 97.33% and the latter 100.2%,respectively.There was no significant difference between both of them.In addition,the IMPT method was easy and feasible.更多还原