CAJ | 학술논문

　　制备了巯基乙酸自组装膜修饰的金电极。利用线性扫描伏安法研究了阿魏酸在此修饰电极上的电化学行为，发现在pH为2.5的磷酸缓冲液中，修饰电极对阿魏酸（FA）表现出良好的电催化能力，能显著地提高阿魏酸的电信号强度。在浓度为5.0×10-6~1.0×10-4 mol/L范围内，阿魏酸的氧化峰电流与其浓度呈线性关系，检出限为1.0×10-6 mol/L。此方法用于注射用阿魏酸钠的检测，回收率在103.7%~104.4%之间。
　　제비료구기을산자조장막수식적금전겁。이용선성소묘복안법연구료아위산재차수식전겁상적전화학행위，발현재pH위2.5적린산완충액중，수식전겁대아위산（FA）표현출량호적전최화능력，능현저지제고아위산적전신호강도。재농도위5.0×10-6~1.0×10-4 mol/L범위내，아위산적양화봉전류여기농도정선성관계，검출한위1.0×10-6 mol/L。차방법용우주사용아위산납적검측，회수솔재103.7%~104.4%지간。
The mercaptoacetic acid self-assemble monolayer modified gold electrode was prepared. The electro-chemical behavior of ferulic acid (FA) at the modified electrode was studied by linear sweep voltammetry. It was found that, in phosphate buffer of pH2.5, the modified electrode showed an excellent electrocatalytic ability to fer-ulic acid and the peak currents were elevated greatly. The peak currents were linearly dependent on the FA concen-trations in the range of 5.0 × 10-6 to 1.0 × 10-4 mol/L , and the detection limit was 1.0 × 10-6 mol/L . This method was applied in the ferulic acid determination in injection with the recovery of 103.7%~104.4%.