论文部分内容阅读
近几年来,聚合物化学修饰电极的发展很快,在分析化学中的应用也愈来愈多。它是电分析化学中一个活跃的研究方向. 催化动力学法、吸光光度法、原子吸收法、溶出伏安法等测定银已有不少报道。Cheek等曾用Z-6020(含乙撑二胺基团)炭糊电极溶出伏安法测定银,苏致兴等用聚丙烯脒硫氰酸盐膜修饰电极溶出伏安法测定银,但灵敏度不高。用二环己基-18-王冠-6-Nafion 117修饰电极虽然灵敏度高,可电极
In recent years, the development of polymer chemically modified electrodes has been rapidly developed, and more and more applications have been made in analytical chemistry. It is an active research direction in the field of electroanalytical chemistry.Catalytic kinetics, absorbance spectrophotometry, atomic absorption spectrometry and stripping voltammetry have been reported in many fields. Cheek had used Z-6020 (containing ethylenediamine group) carbon paste electrode stripping voltammetry determination of silver, Sue Chi Hing and other polyacrylamide thiocyanate film modified electrode stripping voltammetry determination of silver, but the sensitivity is not high . Dicyclohexyl-18-Crown-6-Nafion 117 modified electrode Although the sensitivity is high, the electrode