广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2012年
17期
93-94,125
,共3页
赵玺玉%王艳%陈语希%林喜乐%杨明华
趙璽玉%王豔%陳語希%林喜樂%楊明華
조새옥%왕염%진어희%림희악%양명화
四氟硼酸四(乙腈)铜(I)%电位滴定法%碘量电位滴定法
四氟硼痠四(乙腈)銅(I)%電位滴定法%碘量電位滴定法
사불붕산사(을정)동(I)%전위적정법%전량전위적정법
tetrakis (acetonitrile) copper (I) tetrafluoroborate%potentiometric titration method%iodometric - potentiometrie titration
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。
建立瞭化學試劑四氟硼痠四(乙腈)銅(I)中硼和銅含量的測定方法。比較瞭電位滴定法測硼、原子吸收分光光度法和碘量電位滴定法測定銅含量所錶徵該試劑純度的差異。結果錶明,電位滴定法測硼、碘量電位滴定法測定銅兩種方法的相對標準偏差均近2%,前者的樣品加標平均迴收率97.33%後者100.2%,兩種方法沒有顯著差異,但碘量電位滴定法簡單易行。
건립료화학시제사불붕산사(을정)동(I)중붕화동함량적측정방법。비교료전위적정법측붕、원자흡수분광광도법화전량전위적정법측정동함량소표정해시제순도적차이。결과표명,전위적정법측붕、전량전위적정법측정동량충방법적상대표준편차균근2%,전자적양품가표평균회수솔97.33%후자100.2%,량충방법몰유현저차이,단전량전위적정법간단역행。
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 easv and feasible.