摘要
研究了溴代十六烷基三甲基胺 (CTMAB)存在下 ,铅与苯基荧光酮的显色反应。试验表明 ,铅与苯基荧光酮在CTMAB存在下能够形成稳定的络合物 ,该络合物的λmax=6 2 0nm ,摩尔吸光系数ε =2 .0 7× 10 5L·mol- 1·cm- 1,铅量在 0～ 6 .2 2 μg/ 10ml范围内服从比耳定律。
In an alkaline medium of pH 13, lead(Ⅱ) reacts with phenylfluoron in the presence of CTMAB to form a stable complex, having its absorption maxima at 620nm. The molar absorptivity (ε) of the complex is found to be 2.07×10 5L·mol -1·cm -1. Beer′s law is obeyed in the range of 0～6.22μg of Pb(Ⅱ) per 10ml of solution.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2002年第12期607-608,共2页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
