摘要
通过共价键合的方法将所制备的席夫碱壳聚糖修饰在玻碳电极表面 ,制成席夫碱壳聚糖修饰电极(SBCME) ,并对其电化学特性进行了研究。利用微分脉冲伏安法测定了对苯二酚 (HQ) ,结果表明 :在 0 .5mol L三羟甲基氨基甲烷 (tris)底液 (pH 3 .0 )中 ,电极对HQ具有良好的吸附性与选择性 ,HQ浓度在 1 .0× 1 0 - 6～ 2 .0×1 0 - 3mol L范围内与其氧化峰电流呈线性关系 ,检出限可达 1 .0× 1 0 - 7mol L。利用此电极测定样品 。
Schiff base chitosan modified glassy carbon electrode (SBCMGCE) was prepared by the method of covalent-bond reaction. The electrochemical behavior of hydroquinone at the SBCMGCE was studied. The electrode can be used for the determination of trace amounts of hydroquinone with differential pulse voltammetry. The results show that the elctrode has good selectivity and sensitivity for hydroquinone in 0.5 mol/L TRIS supporting electrolytes pH 3.0). The oxidation peak current of hydroquinone depends linearly on the concentration of hydroquinone in the 1.0 x 10(-6) similar to 2.0 x 10(-3) mol/L, and the detection.limit is 1.0 x 10(-7) mol/L. This electrode has been used for determining the hydroquinone in developer and the result is satisfied.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2003年第9期1048-1052,共5页
Chinese Journal of Analytical Chemistry
基金
福建省自然科学基金资助项目 (No .D9910 0 14 )
