1. 郑州大学 药学院, 河南 郑州 450001
2. 河南工业大学 化学化工学院, 河南 郑州 450001
3. 郑州大学 化学系, 河南 郑州 450001
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杨冉, 曾华金, 睢国慧, 郭城, 李建军, 屈凌波. 利用CdTe量子点增敏鲁米诺-过氧化氢化学发光体系测定水环境中的对苯二酚[J]. 发光学报, 2013,(1): 116-121
YANG Ran, ZENG Hua-jin, SUI Guo-hui, GUO Cheng, LI Jian-jun, QU Ling-bo. Determination of Hydroquinone in The Aquatic Environment by Chemiluminescence of Luminol-H<sub>2</sub>O<sub>2</sub> Sensitized by CdTe Quantum Dots[J]. Chinese Journal of Luminescence, 2013,(1): 116-121
杨冉, 曾华金, 睢国慧, 郭城, 李建军, 屈凌波. 利用CdTe量子点增敏鲁米诺-过氧化氢化学发光体系测定水环境中的对苯二酚[J]. 发光学报, 2013,(1): 116-121 DOI: 10.3788/fgxb20133401.0116.
YANG Ran, ZENG Hua-jin, SUI Guo-hui, GUO Cheng, LI Jian-jun, QU Ling-bo. Determination of Hydroquinone in The Aquatic Environment by Chemiluminescence of Luminol-H<sub>2</sub>O<sub>2</sub> Sensitized by CdTe Quantum Dots[J]. Chinese Journal of Luminescence, 2013,(1): 116-121 DOI: 10.3788/fgxb20133401.0116.
在碱性条件下,CdTe量子点对鲁米诺-过氧化氢化学发光体系具有显著的增敏作用,而对苯二酚对该体系的化学发光有强烈的抑制作用,以此建立了流动注射化学发光检测对苯二酚的新方法。在优化实验条件下,在1.0~25nmol·L,-1,范围内对苯二酚的浓度与化学发光强度的抑制值Δ,I,呈良好的线性关系(,R,2,=0.9932),检出限为0.76nmol·L,-1,经实际应用证明,该方法可用于水环境中对苯二酚的测定。此外,对CdTe量子点增敏鲁米诺-过氧化氢化学发光体系的机理进行了探讨。
Based on the phenomenon that hydroquinone can obviously inhibit the CL signal of the luminol-H,2,O,2, system sensitized by CdTe QDs in basic medium, a novel flow-injection chemiluminescence method for the determination of hydroquinone has been developed. Under the optimum conditions, the linear range for the determination of hydroquinone was 1.0~25 nmol·L,-1, with a detection limit of 0.76 nmol·L,-1, calculated as proposed by IUPAC and a relative standard deviation of 2.56% for 11 solutions of 4.0 nmol·L,-1, hydroquinone. The proposed method can be used to determine hydroquinone content in water samples from the environment and satisfactory results were obtained without interferences from the sample matrix. Furthermore, the possible enhancement mechanism of CdTe QDs on luminol-H,2,O,2, CL was further investigated.
对苯二酚碲化镉量子点环境检测化学发光
HydroquinoneCdTequantum dotsenvironmental detectionchemiluminescence
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