碘化物-CTMAB体系共振光散射法测定电镀废水中的钯  

DETERMINATION OF PALLADIUM IN ELECTROPLATING WASTE WATER WITH IODIDE-CETYLTRIMETHYL AMMONIUM BROMIDE SYSTEM BY RESONANCE LIGHT SCATTERING METHOD

作　　者：衷明华[1] 

机构地区：[1]韩山师范学院化学系,潮州521041

出　　处：《化学分析计量》2006年第1期18-20,共3页Chemical Analysis And Meterage

基　　金：江西省自然科学基金项目(0320039)

摘　　要：用简易荧光计研究了在微酸性介质中钯-碘化钾-溴化十六烷基三甲基铵体系的共振光散射光谱，考查了光谱特征、影响因素和适宜的反应条件，确定了散射光强度与溶液中钯浓度的关系，提出了共振光散射法测定钯的方法。钯的线性范围为0．0—0．5μg／mL，检出限为0．005μg/mL。该法可用于电镀废水中钯浓度的测定。The resonance light scattering spectrum of cetyltrimethyl ammonium bromide in subacidity medium was enhanced significantly in the presence of [ PdI4 ]^2- solution. The spectral characteristics, the affecting factors and the optimum conditions of the reaction were investigated by easy fluorophotometer. A new method based on the relationship of the intensity of resonance light scattering to the concentration of Pd^2＋ in sample solution was established. The detection limit and the linear range for Pd^2＋ were 0. 005 μg/ mL and 0.0 -0.5 μg/mL, respectively. The proposed method has been used to determine Pd^2＋ in electroplating waste water sample.

关 键 词：钯 溴化十六烷基三甲基铵 共振光散射 

分 类 号：O614.242[理学—无机化学] Q523[理学—化学]