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( )的新方法 ,其摩尔吸光系数ε为 1.6 7× 10 4 L· mol- 1 · cm- 1 ,Sandell灵敏度为 0 .0 0 38μg.cm- 2 ,Cu( )在 0~ 30 μg/ 2 5 ml范围内符合比耳定律。方法用于生物样中 Cu( )的测定 。
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 Cu 2+ with AAHQ is presented, with molar aborption coefficient ε being 1 67×10 4 L·mol -1 ·cm -1 and Sandell sensibility 0 003 84 g·cm -2 .The copper amount obeys Beer's law in the range of 0 to 30 μg/25 ml.Determination result for Cu 2+ in food samples is satisfying.
出处
《广西科学》
CAS
2002年第4期276-280,共5页
Guangxi Sciences