Abstract
采用火焰原子吸收光谱法（FAAS）研究了交联聚丙烯腈螯合树脂对环境样品中Pb2＋的吸附分离/富集行为,并考察了共存离子的干扰。结果表明,该树脂对Pb2＋的吸附率在溶液pH=5.4、静态吸附时间1.5 h时室温下可达90%。在最佳吸附条件下,树脂对单一Pb2＋的饱和吸附容量可达49.6 mg/g。以0.1 mol/L盐酸溶液作为解吸剂,可将吸附在树脂上的Pb2＋定量洗脱,富集倍数和解吸率可分别达到50和97%。富集50倍后,方法的检出限（3σ10）为5.3μg/L;相对标准偏差（RSD）为2.1%;加标回收率为92.9%～97.6%。
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