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利用β-环糊精交联聚合物树脂(β-CDP)的选择性包合吸附性能和良好的透光性能,将其作为有机显色剂的载体用于痕量金属的分光光度测定。试验探索了β-CDP 包合2-[5-溴-(2-吡啶偶氮)]-5-二乙氮基苯酚(5-Br-PADAP)的性能及对包合反应和测定过程中的各种影响因素。首次提出了β-环糊精交联聚合物包合5-Br-PADAP 树脂固定相测定痕量镍的分光光度法,并成功地应用于黑木耳、人发及铸造锡合金中痕量镍的测定。
The β-cyclodextrin cross-linked polymer resin (β-CDP) was used as a carrier of organic chromogenic reagent in the determination of trace metals by selective inclusion adsorption and good light transmission. The experiment explored the properties of β-CDP inclusion of 2- [5-Bromo-2-pyridylazo] -5 -diazinophenol (5-Br-PADAP) Various factors. The spectrophotometric method for the determination of trace nickel with β-cyclodextrin cross-linked polymer inclusion 5-Br-PADAP resin was first proposed and applied to the determination of trace nickel in black fungus, human hair and cast tin alloy Determination.