β-环糊精聚合物包结PAN树脂富集-XRF测定痕量Cu,Co,Cr与Pb

Determination of trace Cu,Co,Cr and Pb by X-ray fluorescence analysis with adsorption of β-cyclodextrin polymer including PAN resin

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 article discussed the adsorption properties of the resin which β-cyclodextrin cross-linked polymer included PAN synthesized by ourselves for some heavy metals. Based on the characteristics of XRF for solid samples and multi-element determination, the samples with a variety of heavy metals were accumulated and filtered to make thin flake for XRF determination without elution. A new method was developed for the XRF determination of trace Cu, Co, Cr and Pb. The sample preparation was simple and fast, preconcentration and separation had high efficiency with small matrix effect and low detection limit. This method was applied to the determination of trace cU, Co, Cr and Pb in environmental water samples with satisfactory results.