| 2-(2-喹啉偶氮)-1,5-苯二酚光度法测定锌[Ⅱ]的研究 |
| |
| 引用本文： | 董学畅,曾茗,胡秋芬,尹家元. 2-(2-喹啉偶氮)-1,5-苯二酚光度法测定锌[Ⅱ]的研究[J]. 云南化工, 2001, 28(5): 29-30,35 |
| |
| 作者姓名： | 董学畅 曾茗 胡秋芬 尹家元 |
| |
| 作者单位： | 1. 云南民族学院化学系,昆明,650031
2. 云南大学化学系,昆明,650091 |
| |
| 摘 要： | 本试验合成 2 ( 2 喹啉偶氮 ) 1,5 苯二酚 ,并研究了其与锌的显色反应 ,在pH =6 .0HAc NaAc缓冲介质中 ,溴化十六烷基三甲基铵 (CTMAB)存在下 ,锌与QADHB形成 1∶2的稳定配合物 ,最大吸波长为 5 5 0nm ,摩尔吸光系数ε为 4.96× 10 4L .mol- 1 .cm- 1 。锌含量在 0～ 2 0 μg/2 5ml范围内符合比耳定理。方法用于测定水样中微量锌 ,结果满意。
|
| 关 键 词： | 2(2喹啉偶氮)1,5苯二酚 锌 分光光度法 |
| 文章编号： | 1004-275(2001)05-0029-02 |
Study on the Spectrophotomeric Determination of Zinc with 2-(2-Quinolinylazo)-1, 5-Dihydroxyibenzene |
| |
| DONG Xue chang ,ZENG Ming ,HU Qiu fen ,YIN Jia yuan. Study on the Spectrophotomeric Determination of Zinc with 2-(2-Quinolinylazo)-1, 5-Dihydroxyibenzene[J]. Yunnan Chemical Technology, 2001, 28(5): 29-30,35 |
| |
| Authors: | DONG Xue chang ZENG Ming HU Qiu fen YIN Jia yuan |
| |
| Affiliation: | DONG Xue chang 1,ZENG Ming 1,HU Qiu fen 2,YIN Jia yuan 2 |
| |
| Abstract: | Quinolinylazo) 1,5 dihydroxyibenzene(QADHB) was synthesized and its color reaction with zinc(Ⅱ) was studied. Experimental results showed that the complex with the molar ratio of 1∶2 was formed in the presence of a pH=6.0 buffer solution and the medium of CTMAB. Its maximum absorption was at 550 nm,with the molar absorption as 4.96×10 4 L·mol -1 .cm -1 .Beer's law was obeyed in the range of 0～20 μg/ 25 mL. The method could be used in the determination of zinc in water to give satisfactory results. |
| |
| Keywords: | quinolinylazo) 1 5 dihydroxyibenzene(QADHB) zinc spectrophotometry |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
