摘要
用连续光源和原子吸收光谱仪对胡椒基荧光酮 (PIF)与镓的显色反应进行了研究 .在表面活性剂CPB存在下 ,镓与胡椒基荧光酮形成 1∶4蓝紫色配合物 ,最大吸收波长在 56 0nm处 ,表观摩尔吸光系数为 9.53× 10 4 ,镓量在 0～ 0 .5μg/mL范围内符合比耳定律 .干扰离子可用乙酸丁酯分离 .
A spectrophotometric method for determination of Gallium(Ⅲ) with piperonal fluorone is studied by the aid of continuous light sources and an atomic absorption spectrophotometer.Ga with PIF to form 1∶4 blue violet complex,which shows maxium absorption at 560 nm.The apparent molar absorption coefficient is 9.53×10 4 L·mol -1 ·cm -1 .Beer′s law is obeyed in the range of 0～0.5 μg·mL -1 .The interferent ions can be separated by means of butyl acetate extration.The method has been applied to determination of micro amount gallium in the ores with satisfactory results.
出处
《江西师范大学学报（自然科学版）》
CAS
2000年第1期54-57,共4页
Journal of Jiangxi Normal University(Natural Science Edition)
基金
江西省自然科学基金资助项目!(99110 9)
关键词
原子吸收光谱仪
镓
显色反应
胡椒基荧光酮
atomic absorption spectrophotometer
continuous light sources
molecular absorption spectrometry
gallium(Ⅲ)
