采用自行合成的β-环糊精交联聚合物包结PAN螯合树脂,研究了该树脂对部分重金属元素的吸附性能。并利用XRF适合固体试样、多元素同时测定的特点,将试样中多种重金属元素富集后过滤制成薄样,不经洗脱直接采用XRF进行测定。建立了XRF测定痕量Cu、Co,Cr和Pb的新方法。方法可应用于环境水样中痕量Cu,Co,Cr与Pb的测定。 The self-synthesized β-cyclodextrin cross-linked polymer was used to encapsulate PAN chelating resin. The adsorption properties of some heavy metal elements were studied. XRF is suitable for the solid sample and the simultaneous determination of multiple elements. The sample is enriched with various heavy metal elements and filtered to make a thin sample, which is directly measured by XRF without elution. A new method for the determination of trace amounts of Cu, Co, Cr and Pb by XRF was established. The method can be applied to the determination of trace Cu, Co, Cr and Pb in environmental water samples.