摘要
研究了在微乳液OP存在下,SnⅣ与三甲氧基苯基荧光酮(TMPF)的显色反应。结果表明,在pH4·0的乙酸-乙酸钠缓冲溶液中,SnⅣ与TMPF形成1:3的紫红色络合物,络合物的最大吸收峰位于552nm波长处,表观摩尔吸光系数ε为1·5×105L·mol-1·cm-1。10mL溶液中,SnⅣ量在0～10μg范围内符合比尔定律。本法用于铜合金中锡的测定,结果满意。
The color reaction of reagent trimethoxyphenylflurone （TMPF） with Sn（Ⅳ） in the presence of micromulsion OP was studied, Results showed that the color reagent reacted with Sn（Ⅳ）） to form a stable purple-red complex（3 ： 1） in the medium of HAc-NaAc buffer solution at pH 4.0. The maximum absorption wavelength and apparent molar absorptivity were 552 nm and 1.5×10^5L·mol^-1·cm^-1,respectively. Beer＇s law was obeyed in the range of 0-10μg/10 mL for Sn（Ⅳ）. The method has been applied to the determination of micro Sn（Ⅳ） in copper alloy with satisfactory results.
出处
《冶金分析》
EI
CAS
CSCD
北大核心
2007年第3期65-67,共3页
Metallurgical Analysis
基金
江苏省海洋生物技术重点建设实验室基金项目(2005HS001
010
2006HS020)
淮海工学院自然科学基金项目(Z2005014
Z2006001)
