摘要
在玻碳(GC)电极上,用电化学方法将Dawson型磷钼杂多酸制成P2Mo18 GC的过氧化氢传感器,研究了它在0.5mol·L-1H2SO4溶液中的电化学行为及其对酸性水溶液中的H2O2电催化还原作用.发现其ipc与CH2O2在3.45×10-4～5.28×10-3mol·L-1范围内呈良好的线性关系,线性相关系数r=0.998,检测下限8.8×10-5mol·L-1,用于水样中H2O2的测定,结果满意.初步探讨了电催化还原机理.
On glassy carbon electrode, Dawson-type molybdophosphate was made into hydrogen peroxide sensor by electrochemical method. Its electrochemical behaviors have been studied. The catalytic current is proportional to the concentration of hydrogen peroxide in the range of 3.45×10-4 to 5.28×10-3mol·L-1. The linear correlation coefficient is 0.998 and the detection limit is 8.8×10-5?mol·L-1. The results of the determination of H2O2 in water samples are satisfactory. The catalytic mechanism has been described.
出处
《湖北大学学报（自然科学版）》
CAS
2002年第4期322-325,共4页
Journal of Hubei University：Natural Science
基金
湖北省自然科学基金(200J007)资助
