【摘要】 研究用细菌修饰的碳糊电极对金离子的响应特性，并应用该电极检测水溶液中的金离子，金离子浓度在１０～１００μｇ／ｍＬ．呈线性关系，重现性为３．４％，检测限达１ｎｇ／ｍＬ．电极具有制备简单，灵敏度高等优点．文中还讨论了金离子在还原菌修饰的碳糊电极上的还原机理．更多还原

【Abstract】 An electrochemically pretreated carbon paste electrode modified with bacteria has been studied and used for determination of trace amounts of gold(Ⅲ). A detection limit of 1 ng/mL was obtained by applying cathodic stripping valtammetry. There is a linear relationship between the concentration and peak height in the range of 10～100 μg/mL. The ralative standard deviation of the response to 84.7 μg/mL Au(Ⅲ) is 3.43%.更多还原