微乳液-鲁米诺-H_2O_2-钴(化学发光法测定废水中痕量钴(Ⅱ)  

Determination of trace cobaltⅡ in waste waters by microemulsion-luminol-hydrogen peroxide-cobalt Ⅱ chemiluminescence method

作　　者：姚坡[1] 刘娟 鲁琛琛[3] 李绍卿[3] 

机构地区：[1]山东省环境保护科学研究设计院,山东济南250013 [2]中海油山东化学工程有限责任公司,山东济南250013 [3]长安大学环境科学与工程学院,陕西西安710064

出　　处：《冶金分析》2011年第6期62-65,共4页Metallurgical Analysis

摘　　要：基于微乳液有增稳、增敏、增溶等作用,建立了微乳液-鲁米诺-H2O2-Co（Ⅱ）化学发光体系测定Co（Ⅱ）的分析方法。该法测定Co（浓度范围为1.0×10-9~1.0×10-6mg/mL,检出限为9.15×10-10mg/mL。测定制药废水中痕量钴,该方法与火焰原子吸收光谱法结果一致,相对标准偏差（n=5）为1.0%~2.5%。Based on the stabilization,sensitization and solubilization effect of microemulsion,the determination of cobalt Ⅱ by chemiluminesence method with microemulsion-luminol-hydrogen peroxide-Co Ⅱ system was established.This method could be used to effectively determine CoⅡ in the range of 1×10-9-1×10-6 mg/mL with detection limit of 9.15×10-10 mg/mL.The method has been applied to the determination of trace cobalt Ⅱ in pharmaceutical waste water samples.The results were consistent with those obtained by flame atomic absorption spectrometry,and the relative standard deviations（RSD,n=5） was 1.0 %-2.5 %.

关 键 词：微乳液 化学发光法 钴 废水 

分 类 号：O657.39[理学—分析化学]