摘要
非常规铜离子敏感碳糊电极的研究胡效亚，冷宗周（扬州大学师范学院化学化工系，扬州，２２５００２）关键词电位法，碳糊电极，铜离子，铜离子选择性铜离子选择电极的研究已有大量报道［１～３］，并被广泛用于各种样品的分析［４～６］，但它的响应斜率都在３０ｍＶ／ｄ...
This paper describes a potentiometric method for the determination of Cu2+ in 0.1 mol/L HAc-NaAc-0.05 mol/L NaCl buffer(pH 5.00)using a carbon paste electrode(without ionophore,mixing paraffin liquid and spectroscopic graphite powder at a ratio of 1.5:1W/ W).The linear range is 2.5 ×1006～1.0×10-3 mol/L with 49 mV/decade of calibration slope. It exhibits a high selectivity and a desired reproducibility. The potential response behavior is caused by carbon paste extraction(or adsorption) of the matter being measured and the redox potential mechanism.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1995年第8期1207-1208,共2页
Chemical Journal of Chinese Universities
关键词
电位法
碳糊电极
铜离子
Potentiometry,Carbon paste electrode,Copper ion,Copper-selectivity
