%0 Journal Article
%T Development of Capillary Electrophoretic Method for Determinationof the Inorganic Anions in the Ash of Black Powder<br>黑火药余烬中无机阴离子的毛细管电泳方法研究
%A YAO Qing hong
%A ZHANG Pu dun
%A XIONG Jian hui
%A ZHENG Yu fang
%A SHI Xian zhe
%A XU Guo wang
%A <br>姚庆红
%A 张普敦
%A 熊建辉
%A 郑育芳
%A 石先哲
%A 许国旺
%J 色谱
%D 2002
%I 
%X A capillary electrophoretic method for determining the inorganic anions in the ash of black powder has been developed. The components and pH of the buffer solution, the concentration of osmotic flow modifier and the separation voltage were investigated. The optimized parameters were 5.0 mmol/L sodium chromate buffer solution (pH 8.20) containing 0.5 mmol/L cetyltrimethylammonium bromide (CTAB) as osmotic flow modifier, a separation voltage of -20 kV and a detection wavelength of 254 nm. Under the specified conditions five anions were completely separated in four minutes, and the repeatabilities (RSD) of migration time and peak area were in the range of 0.17%-1.4% and 3.9%-5.0%, respectively. The detection limits were in the range of 5.0 mumol/L to 10.0 mumol/L. To show the usefulness, the method was applied to analyze the ash of a black powder and the results showed that the relative standard deviations of the determination for Cl- and NO2- were 6.0% and 3.9%, respectively.
%K capillary electrophoresis
%K indirect UV detection
%K inorganic anions
%K black powder<br>余烬
%K 毛细管电泳
%K 间接紫外检测
%K 无机阴离子
%K 黑火药
%K 分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=D8AFF2545FC9D7B7&yid=C3ACC247184A22C1&vid=A04140E723CB732E&iid=38B194292C032A66&sid=0DEB7A8A66C33AAD&eid=F8035C8B7D8A4264&journal_id=1000-8713&journal_name=色谱&referenced_num=2&reference_num=7