摘要
本文研究了新显色剂5-(4-胂酸基苯偶氮)-8-氨基喹啉(APAQ)与铜(Ⅱ)的显色反应.在溴化十六烷基三甲铵(CTMAB)存在下,试剂与铜(Ⅱ)形成1:3的蓝紫色络合物,λmsx=580nm,摩尔吸光系数为8.9×10~4.铜量在0～15μg/25ml范围内遵守比尔定律.方法已用于锌、铝合金中铜的测定,结果良好.
In this paper, the colour reaction of copper with a new reagent 5- (4-arsonicphenylazo) -8-aminoquinoline has been studied. In the presence of cetyltrimethyl ammonium bromide, copper ( Ⅱ ) reacts with the colour reagent to form a 1 :3 violet blue complex. The molar absorptivity is 8.9X104 at 580nm.Beers' law is obeyed over the range of 0-15ng/25 ml for copper. The present method is applicable to the determination of copper in zinc and aluminum alloys.
出处
《冶金分析》
CAS
CSCD
北大核心
1993年第1期3-5,共3页
Metallurgical Analysis
关键词
铜
显色反应
氨基喹啉
比色法
Copper, 5- ( 4-Arsonicphenylazo ) -8-aminoquinoline, Spectrophotometry.
