硫化铜纳米粒子的合成及应用于汞离子的测定  

Synthesis of Copper Sulfide Nanoparticles and Its Application to the Determination of Mercury Ion

作　　者：龙云飞[1] 何全[1] 陈述[1] 

机构地区：[1]湖南科技大学化学化工学院,湘潭411201

出　　处：《应用化学》2010年第11期1318-1321,共4页Chinese Journal of Applied Chemistry

基　　金：湖南省自然科学基金(09JJ6021);湖南省青年骨干教师培养对象资助项目

摘　　要：室温下以柠檬酸三纳为稳定剂,在水相中合成了CuS纳米粒子(NP-CuS)。用共振光散射(RLS)技术探索了不同pH值和Cu2+与S2-不同配比条件下,体系RLS强度(IRLS)的变化。结果表明,在最佳实验条件下,在0.01～100μmol/L范围内IRLS与汞离子浓度间呈现良好的线性关系(r=0.991),据此建立了测定水中微量汞的方法。方法的检测限为0.003μmol/L,样品加标测定的回收率为100.3%～103.4%。With citrate as a stabilizing agent,CuS nanoparticles were synthesized in aqueous phase.This article is to study the effects of resonance light scattering between CuS nanoparticles and mercury ions under the conditions of different pH values and the ratios of sodium sulfide and copper sulfate.Under optimum conditions,the method to determine trace mercury in water was established.The results showed that in the optimum experimental conditions,the intensity of resonance light scattering has a good linearity（r = 0.991） in the range of 0.01 ～ 100 μmol/L with a detection limit of 0.003 μmol/L.The recovery is in the range of 100.3% ～ 103.4% for Hg2＋ detection in environmental water sample.

关 键 词：硫化铜 纳米粒子 共振光散射 汞离子 

分 类 号：O657.6[理学—分析化学]