电化学发光法测定双酚A  

Determination of Bisphenol A by Electrochemiluminescence

作　　者：蒋晓华[1] 邱彬[2] 丁文捷[1] 栾崇林[1] 

机构地区：[1]深圳职业技术学院应用化学与生物技术学院,深圳518055 [2]福州大学化学化工学院,福州350002

出　　处：《理化检验（化学分册）》2013年第7期858-860,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

基　　金：深圳职业技术学院重点项目(2210K3070014);广东省高等学校"千百十工程"人才培养专项基金(01080106)

摘　　要：以玻碳电极为工作电极,在pH 2.0的B-R缓冲溶液中,双酚A对钌联吡啶的电化学发光有强增敏作用,据此提出了一种灵敏地测定双酚A的电化学发光方法。双酚A的浓度与化学发光强度的增加值在9.3×10^(-9)~4.0×10^(-7)mol·L^(-1)范围内呈线性关系,检出限(3S/N)为6.0×10^(-10)mol·L^(-1)。方法用于聚碳酸酯奶瓶样品分析,加标回收率在94.0%~110%之间,测定值的相对标准偏差(n=5)在3.0%~6.7%之间。In a B-R buffer solution of pH 2. 0 and using glassy carbon electrode as the working electrode, electrochemiluminescence （ECL） of the cation of ruthenium pyridine ERu（bpy）ae＋] was found strongly enhanced by the presence of bisphenol A （BPA）. Based on this fact, a sensitive ECL method was proposed for the determination of BPA. Linear relationship between magnitude of increase in ECL intensity and concentration of BPA was obtained in the range of 9.3×10^- 9--4. 0×10^-7mol·L^-1, with detection limit （3S/N） of 6. 0×10^-10mol · L ^-1 The proposed method was applied to the determination of BPA in sample of polycarbonate feeding-bottle, giving values of recovery and RSD＇s （n=5） in the ranges of 94. 0%--110% and 3. 0%--6.7% respectively.

关 键 词：电化学发光法 钌联吡啶 双酚A 

分 类 号：O657.14[理学—分析化学]