CAJ | 학술논문

利用离子液体为粘合剂制作碳糊电极,采用高分子聚合法,合成包埋有Ru(bpy)_2(dcbpy)~(2+)的高分子聚合物,将钌聚合物掺杂于离子液体碳糊电极中,制作电化学发光传感器.结果表明,此传感器具有很好的电化学发光特性,与用石蜡油为粘合剂制作的电化学发光传感器相比,离子液体为粘合剂的电化学发光传感器检测三丙胺的检出限降低1个数量级.海洛因对电化学发光传感器的发光信号有很好的增强作用,基于此建立了高灵敏度检测海洛因的电化学发光分析法,海洛因浓度与电化学发光信号在2.0×10~(-9)～2.0×10~(-5) mol/L范围内呈良好的线性关系,检出限为8×10~(-10) mol/L (S/N=3).将电化学发光传感器在5.0×10~(-9) mol/L海洛因溶液中采用线性循环电位连续扫描60圈,相对标准偏差小于2.2%.本方法用于血清中海洛因的检测,其回收率为94%～101%.
이용리자액체위점합제제작탄호전겁,채용고분자취합법,합성포매유Ru(bpy)_2(dcbpy)~(2+)적고분자취합물,장조취합물참잡우리자액체탄호전겁중,제작전화학발광전감기.결과표명,차전감기구유흔호적전화학발광특성,여용석사유위점합제제작적전화학발광전감기상비,리자액체위점합제적전화학발광전감기검측삼병알적검출한강저1개수량급.해락인대전화학발광전감기적발광신호유흔호적증강작용,기우차건립료고령민도검측해락인적전화학발광분석법,해락인농도여전화학발광신호재2.0×10~(-9)～2.0×10~(-5) mol/L범위내정량호적선성관계,검출한위8×10~(-10) mol/L (S/N=3).장전화학발광전감기재5.0×10~(-9) mol/L해락인용액중채용선성순배전위련속소묘60권,상대표준편차소우2.2%.본방법용우혈청중해락인적검측,기회수솔위94%～101%.
An electrogenerated chemiluminescence ( ECL) sensor was fabricated by employing ruthenium complex polymer as ECL signal and ionic liquid as binding reagent and a sensitive ECL method for the determination of heroin was developed. The ECL sensor was prepared by thoroughly mixing ruthenium complex polymer,graphite powder and ionic liquid,which shows good electrochemical and ECL behaviors. The detection limit for tripropylamine (TPA) was one order of magnitude lower than that observed at the paraffin modified carbon paste electrode. ECL intensity of the fabricated sensor was greatly enhanced in the presence of heroin and a sensitive ECL method was proposed for the determination of heroin based on the enhancement ECL. The ECL intensity was linear with the concentration of heroin in the range from 2. 0 ×10~(-9) mol/L to 2. 0×10~(-5) mol/L and the detection limit was 8×10~(-10) mol/L. The ECL sensor exhibited a long-term stability,fine reproducibility with relative standard deviation less than 5% for 5. 0×10~(-9) mol/L heroin in 60 continuous determinations. The developed method allows the detection of heroin in a serum sample with recovery in 94% -101%.