摘要
详细研究了在淡化十六烷基三甲铵（CTMAB）存在下，镓与2，4-二氯苯基荧光酮和F-的显色反应条件和光度性质，在PH6．0的HAc－NaAc缓冲介质中，Ga与试剂形成1：2的配合物，最大吸收峰位于568nm处，表现摩尔吸光系数ε为1．78×105L·mol－1cm－1．Ga含量在0～5μg／25ml范围内符合比尔定律，拟定方法用于地质样品中线的测定，结果满意．
The reaction conditions of Gallium (Ⅲ) with 2, 4-dichlorophenylfluorone(DCIPF) and F- in the presence of CTMAB have been studied. In a buffer solution of pH6. 0HAc-NaAc to form a 1: 2 complex,Maximum absorbance is at 568nm with molar absorptivi-ty of 1. 78 ×105L·mol-1·cm-1,Beer'S law is obeyed in the range of 0～5μg/25ml for Galli-um. The method has been applied to determine Gallium in ores with Satisfactory results
基金
湖北省教委重点科研资助
