| 催化光度法测定痕量铬的研究 |
| |
| 引用本文： | 孙登明,朱庆仁,张振新.催化光度法测定痕量铬的研究[J].韶关学院学报,2003,24(9):78-80. |
| |
| 作者姓名： | 孙登明 朱庆仁 张振新 |
| |
| 作者单位： | 淮北煤炭师范学院化学系,安徽,淮北,235000 |
| |
| 基金项目： | 安徽省高校自然科学基金(99JL0180,2001KJ196) |
| |
| 摘 要： | 研究了在pH=6.0的HAc-NaAc介质中,利用铬(Ⅵ)对过氧化氢氧化邻苯二酚的催化作用,通过条件试验,建立了催化动力学光度法测定痕量路的新方法。方法的线性范围为:0.010～0.40 mg/L,检出限为3.2×10~(-6)g/L。该方法用于自来水和废水中铬的测定,结果较令人满意。
|
| 关 键 词： | 催化光度法 痕量测定 铬 邻苯二酚 |
| 文章编号： | 1007-5348(2003)09-0078-03 |
| 修稿时间： | 2002年5月22日 |
Study on the Catalytic Spectrophotometric Determination of Trace Chromium |
| |
| SUN Deng-ming,ZHU Qing-ren,ZHANG Zhen-xin.Study on the Catalytic Spectrophotometric Determination of Trace Chromium[J].Journal of Shaoguan University(Social Science Edition),2003,24(9):78-80. |
| |
| Authors: | SUN Deng-ming ZHU Qing-ren ZHANG Zhen-xin |
| |
| Abstract: | In this paper, a new catalytic kinetic spectrophotometric method for the determination of trace chromium has been studied. The method is based on the chromium ( VI) catalyzed oxidation of pyrocatechol by hydrogen peroxide in weak acidic medium at pH6.0. The linear range of the method is 0.010 - 0.40 mg/L. The detection limit for chromium (VI) is 3.2 x 10-6g/L. The method has been applied to the determination of chromium in tap water and waste water with satisfactory results. |
| |
| Keywords: | catalytic spectrophotometry trace determination chromium pyrocatechol |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
