AAC  >> Vol. 5 No. 4 (November 2015)

    单壁碳纳米管修饰电极测定聚碳酸酯塑料中的双酚A
    Determination of Bisphenol A in Polycarbonate Plastic Products Using Single-Walled Carbon Nanotubes Modified Glassy Carbon Electrode

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作者:  

冯志玲,刘 青,冯施施,林莹莹,林思思,翁雪香:浙江师范大学化学与生命科学学院,浙江 金华

关键词:
双酚A单壁碳纳米管循环伏安法Bisphenol A Single-Walled Carbon Nanotubes Cyclic Voltammetry (CV)

摘要:

用循环伏安法(CV)研究了环境激素双酚A (BPA)在单壁碳纳米管(SWNTs)修饰电极上的电化学行为。实验结果表明,在pH = 8.0的磷酸盐缓冲溶液中,BPA在碳纳米管修饰电极上的电化学行为是受吸附控制的不可逆电化学氧化过程。在优选的实验条件下,峰电流与BPA浓度在0.04~8 μM范围内呈良好的线性关系,其中检测限为23 nM (3倍信噪比)。该方法简单,快速,灵敏,可用于矿泉水瓶等塑料制品中BPA的检测。

Direct electrochemistry of bisphenol A (BPA) at the single-walled carbon nanotubes (SWNTs) modified glassy carbon electrode (GCE) is studied in this paper. The experimental results show that the electrochemical behavior of BPA on carbon nanotubes modified electrode is an irreversible electrochemical oxidation process controlled by adsorption in phosphate buffer solution (pH 8.0). Under the optimised experimental conditions, the proposed biosensor exhibits a wide linear range of 0.04 - 8 μM with a low detection limit of 23 nM. This method is simple, fast and suitable for analysis of BPA in polycarbonate products.

文章引用:
冯志玲, 刘青, 冯施施, 林莹莹, 林思思, 翁雪香. 单壁碳纳米管修饰电极测定聚碳酸酯塑料中的双酚A[J]. 分析化学进展, 2015, 5(4): 49-56. http://dx.doi.org/10.12677/AAC.2015.54006

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