Ultrasensitive electrochemiluminescent detection of pentachlorophenol using a multiple amplification strategy based on a hybrid material made from quantum dots, graphene, and carbon nanotubes

Ultrasensitive electrochemiluminescent detection of pentachlorophenol using a multiple amplification strategy based on a hybrid material made from quantum dots, graphene, and carbon nanotubes
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使用基于量子点、石墨烯和碳纳米管混合材料的多重放大策略对五氯苯酚进行超灵敏电化学发光检测

DOI:
10.1007/s00604-013-1081-9
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发表时间:
2014-06
期刊:
影响因子:
5.7
通讯作者:
Tang Yanhong
Tang Yanhong
中科院分区:
化学2区
文献类型:
--
作者:
Liang Jiesheng;Yang Shanli;Luo Shenglian;Liu Chengbin;Tang Yanhong

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建立了一种高灵敏度、高选择性的电化学发光(ECL)法测定五氯苯酚(PCP)的新方法。它基于由CdS量子点(QD)、石墨烯和碳纳米管(CNT)组成的新型混合材料,并使用过氧二硫酸盐作为共反应物。该系统的使用导致ECL强度增加近18倍。PCP和量子点之间的相互作用,在低至1.0 pM的浓度和在一个很宽的线性范围内(从1.0 pM到1.0 nM),在五氯苯酚的ECL强度的减少观察。该方法几乎不受其它氯酚和硝基酚的影响,电极可重复使用。
We report on a highly sensitive and selective electrochemiluminescence (ECL) based method for the determination of pentachlorophenol (PCP). It is based on a new hybrid material composed of CdS quantum dots (QDs), graphene, and carbon nanotubes (CNTs), and uses peroxodisulfate as the coreactant. The use of this system results in a nearly 18-fold increase in ECL intensity. On interaction between PCP and the QDs, a decrease in ECL intensity is observed at PCP in a concentration as low as 1.0 pM and over a wide linear range (from 1.0 pM to 1.0 nM). The method is hardly affected by other chlorophenols and nitrophenols, and the electrode can be recycled.
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