CAJ | 학술논문

用循环伏安法(CV)研究了水杨酸(SA)在多壁碳纳米管修饰玻碳电极上的电化学行为,并初步探讨了反应机理.实验结果表明,水杨酸在该电极上为一个2e/H~+的完全不可逆过程.在pH=5.0的磷酸盐缓冲溶液(PBS)中,用循环伏安法在该电极上测定了水杨酸.方法线性范围为2.0×10~(-5)～1.0×10~(-3)mol/L,检出限为8.93×10~(-6)mol/L.将该电极用于药品分析,结果令人满意.
용순배복안법(CV)연구료수양산(SA)재다벽탄납미관수식파탄전겁상적전화학행위,병초보탐토료반응궤리.실험결과표명,수양산재해전겁상위일개2e/H~+적완전불가역과정.재pH=5.0적린산염완충용액(PBS)중,용순배복안법재해전겁상측정료수양산.방법선성범위위2.0×10~(-5)～1.0×10~(-3)mol/L,검출한위8.93×10~(-6)mol/L.장해전겁용우약품분석,결과령인만의.
The electrochemical behavior of salicylic acid(SA) at a multi-wall corbon nanotube modified electrode was investigated by cyclic voltammetry in 0.1 mol/L KH_2PO_4-NaOH buffer solution. The results showed that SA under went an irreversible reaction involving two electrons and possibly one proton. The linear range for SA was 2×10~(-5) to 1×10~(-3) mol/L.The detection limit was 8.93×10~(-6) mol/L. The electrode was applied to medicine analysis with satisfactory results.