| 摘要: |
| 合成3种新的偶氮安替比林显色剂:5-(4-安替比林偶氮)-8-羟基喹啉(AAHQ)、1-(4-安替比林偶氮)-2-萘酚(AANP)和3,6-二(4-安替比林偶氮)-H酸(AAHA)。分析其与5种金属离子的显色反应,建立了AAHQ测定微量Cu(Ⅱ)的新方法,其摩尔吸光系数ε为1.67×104 L·mol-1·cm-1,Sandell灵敏度为0.0038μg·cm-2,Cu(Ⅱ)在0~30 μg/25 ml范围内符合比耳定律。方法用于生物样中Cu(Ⅱ)的测定,结果满意。 |
| 关键词: 安替比林偶氮显色剂 金属离子 光度分析 |
| DOI： |
| 投稿时间：2002-03-04修订日期：2002-09-09 |
| 基金项目: |
|
| Synthesis and Application of Three New Antipyrine Azo Chromogenic Agents |
|
Liu Zheng
|
| (Dept. of Materials and Chem. Engi., Guilin Institute of Tech. 12 Jianganlu, Guilin, Guangxi, 541004, China) |
| Abstract: |
| The synthesis procedures for three new antipyrine azo agents,5-(4-antipyrine azo)-8-hydroxyquinoline(shorted in AAHQ),1-(4-antipyrine azo)-2-naphthol and 3,6-2(4-antipyrine azo)-H acid,are described Some chromogenic reactions on five metal ions are analyzed.A method for testing trace Cu2+ with AAHQ is presented, with molar aborption coefficient ε being 1.67×10.4 L·mol-1·cm-1 and Sandell sensibility 0.00384 g·cm-2.The copper amount obeys Beer's law in the range of 0 to 30 μg/25 ml.Determination result for Cu2+ in food samples is satisfying. |
| Key words: antiprine azo chromogenic agent metal ion spectrophotometry |
