火焰原子吸收光谱法测定浆层纸中的铅  

Determination of lead in separator by FAAS method

作　　者：刘燕[1] 

机构地区：[1]轻工业化学电源研究所,江苏苏州215006

出　　处：《电池》2007年第3期244-245,共2页Battery Bimonthly

摘　　要：研究了硝酸.高氯酸消解试样,在DH=6.0～7.6的体系中,用DDTC-MIBK富集试液中的铅,采用火焰原子吸收光谱（FAAS）法测定浆层纸中的铅.研究了影响吸光度的实验条件和共存元素干扰,在波长217.0 am处及0～40 μg/ml范围内,铅呈现良好的线性关系.以3 σc/A计,铅的检出限为0.02μg/ml,方法的相对标准偏差RSB＜3%,回收率为94%～102%.The FAAS method for determining lead in separator used in batteries by HNO3-HClO4 nitration was studied among pH = 6.0 - 7.6, lead was concentrated on DDTC-MIBK. The effects of analytical conditions and coexisting ions on absorbency were optimized and investigated. Beer＇s law was obeyed in the range of 0 - 40 μg/ml for lead. The detection limit was 0.02 μg/ml. The relative standard deviation obtained was less than 3% and the recoveries were 94% - 102%.

关 键 词：铅 测定 浆层纸 锌 锰干电池 萃取 火焰原子吸收光谱(FAAS)法 

分 类 号：TM910[电气工程—电力电子与电力传动]