Highly sensitive detection of bisphenol A in food packaging based on graphene quantum dots and peroxidase
Highly sensitive detection of bisphenol A in food packaging based on graphene quantum dots and peroxidase
复制标题
基于石墨烯量子点和过氧化物酶高灵敏检测食品包装中的双酚A
DOI：
10.1039/c4ay03080j
复制
发表时间：
2015-01-01
影响因子：
3.1
通讯作者：
Tong, Jin
中科院分区：
文献类型：
--
作者：
Huang, Hui;Feng, Ziqian;Tong, Jin
设计了一种基于石墨烯量子点和过氧化物酶的双酚A（BPA）传感新方法。在H2 O2和辣根过氧化物酶（HRP）存在下，BPA被氧化，其氧化产物能有效地猝灭GQDs的荧光。GQDs的荧光猝灭强度（I-0/I）与BPA浓度在1-1000 nM范围内成正比，检测限低至0.4 nM。该方法用于真实的食品包装样品中BPA的检测，结果令人满意。
A novel sensing strategy for bisphenol A (BPA) was designed based on graphene quantum dots (GQDs) and peroxidase. In the presence of H2O2 and horseradish peroxidase (HRP), BPA was oxidized and the oxidation product of BPA could effectively quench the fluorescence of the GQDs. The quenching PL intensity of the GQDs (I-0/I) was proportional to the concentration of BPA in the range of 1-1000 nM, and the detection limit was as low as 0.4 nM. The proposed method could be applied to detect BPA in real food packaging samples with satisfactory results.