| 二安替比林对甲基苯基甲烷与Ce（Ⅳ）的显色反应研究 |
| |
| 引用本文： | 罗琴,谢启明,徐其亨. 二安替比林对甲基苯基甲烷与Ce（Ⅳ）的显色反应研究[J]. 理化检验(化学分册), 2001, 37(1): 37-38 |
| |
| 作者姓名： | 罗琴 谢启明 徐其亨 |
| |
| 作者单位： | 1. 云南楚雄师专化学系,
2. 云南大学化学系 |
| |
| 摘 要： | 研究了二安替比林对甲基苯基甲烷 (DAp MM)与 Ce( )的显色反应 ,在 H3PO4 介质中 ,DAp MM与 Ce( )生成橙色产物。λmax=485nm,ε=3.53× 1 0 5L·mol-1·cm-1。Ce( )含量在0 .5～ 8.0μg/2 5ml内符合比耳定律 ,该体系灵敏度高 ,选择性好 ,用于镁合金和含锌矿石中微量铈的测定 ,结果满意。
|
| 关 键 词： | 光度法 二安替比林对甲基苯基甲烷 铈（Ⅳ） 显色反应 镁合金 微量分析 含锌矿石 |
| 文章编号： | 1001-4020(2001)01-0037-02 |
| 修稿时间： | 1999-10-26 |
STUDY OF THE COLOURREACTION OF DIANTIPYRINYL (p-METHY)-PHENYLMETHANE WITH CERIUM( |
| |
| LUO Qin,XIE Qi-ming,XUQi-heng. STUDY OF THE COLOURREACTION OF DIANTIPYRINYL (p-METHY)-PHENYLMETHANE WITH CERIUM([J]. Physical Testing and Chemical Analysis Part B:Chemical Analgsis, 2001, 37(1): 37-38 |
| |
| Authors: | LUO Qin XIE Qi-ming XUQi-heng |
| |
| Abstract: | A highly sensitive and selective photometric method was proposed for the determination of Ce (Ⅳ) with diantipyrinyl-(p-methy)-phenylmethane (DApMM) in the presence of Mn(Ⅱ). Cerium(Ⅳ) reacts with DApMM to form an orange colored complex in phosphoric acid medium. Its absorption maxa lies at 485nm with a molar absorptivity of 3.53×105L·mol-1·cm-1. Beer′s law is obeyed in the rang of 0.5～8.0μg/25ml. The method has been applied to the determination of Ce(Ⅳ) in ores and alloys. |
| |
| Keywords: | |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
