One-step electrochemical sensor based on an integrated probe toward sub-ppt level Pb2+ detection by fast scan voltammetry
One-step electrochemical sensor based on an integrated probe toward sub-ppt level Pb2+ detection by fast scan voltammetry
复制标题
基于集成探针的一步式电化学传感器，通过快速扫描伏安法检测亚 ppt 水平的 Pb2
DOI：
10.1016/j.aca.2020.07.007
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发表时间：
2020
影响因子：
6.2
通讯作者：
Guo Zhiyong
中科院分区：
文献类型：
--
作者：
Zhang Chunfeng;Hao Tingting;Lin Han;Wang Qi;Wu Yangbo;Kang Kai;Ji Xueping;Guo Zhiyong
基于TCPP-MWCNTs@ Fe 3 O 4集成探针，研制了一种选择性、灵敏检测Pb 2+的一步法电化学传感器，实现了预富集、分离和检测的一体化。得益于集成探针构建的Pb 2+特异性吸附态，200 V/s的FSV极大地提高了检测灵敏度，检测限为0.067 ppt。该一步电化学传感器不仅为Pb 2+的测定提供了一种简单、快速、灵敏、选择性强的方法，而且为开发模拟靶的新方法提供了新思路。
In this work, a one-step electrochemical sensor for selective and sensitive detection of Pb2+ was developed based on the integrated probe TCPP-MWCNTs@Fe3O4, which can realize the integration of pre-enrichment, separation and detection. Benefitting from the specific adsorption state of Pb2+ constructed by the integrated probe, FSV at 200 V/s greatly improves the detection sensitivity with a LOD 0.067 ppt. And, the proposed one-step electrochemical sensor provides not only a simple, fast, sensitive and selective method for the determination of Pb2+, but also a new idea of developing new methods for analog targets.