山西大学学报（自然科学版）2022，Vol.45Issue(6)：1574-1582,9.DOI:10.13451/j.sxu.ns.2021032
氮掺杂二硫化钼负载钯纳米粒子电化学检测氯霉素
Electrochemical Detection of Chloramphenicol by Nitrogen-Doped Molybdenum Disulfide Supported Palladium Nanoparticles
摘要
Abstract
In this work,a new type of nitrogen-doped MoS2-supported palladium nanoparticles(N-MoS2/PdNPs)was prepared by a simple hydrothermal method.This N-MoS2/PdNPs were characterized by transmission electron microscopy(TEM),ultraviolet spec-troscopy(UV-Vis)and X-ray photoelectron spectroscopy(XPS).The electrochemical characteristics of the sensor were evaluated by cyclic voltammetry(CV),differential pulse voltammetry(DPV)and electrochemical impedance method(EIS).Compared with modi-fied and unmodified glassy carbon electrodes(GCE),it is found that GCE modified with N-MoS2/PdNPs can significantly enhance the catalytic performance of chloramphenicol.The linear response range is 5.0 μmol/L-2000 μmol/L,and the detection limit is as low as 1.97 μmol/L(S/N=3).The nanoelectrochemical sensor constructed in this paper shows high sensitivity,good stability,re-markable reliability,repeatability and satisfactory recovery rate(99.6％-100.18％)for the electrochemical detection of CAP in milk samples.关键词
氯霉素/N掺杂/二硫化钼/钯纳米粒子/电化学传感器Key words
chloramphenicol(cap)/nitrogen doping/mos2/palladium nanoparticles/electrochemical sensor分类
化学化工引用本文复制引用
杜晓宇,董文霞,李忠平,温广明..氮掺杂二硫化钼负载钯纳米粒子电化学检测氯霉素[J].山西大学学报（自然科学版）,2022,45(6):1574-1582,9.基金项目
山西省高校科技成果转化计划(2019KJ008) （2019KJ008）
2019研究生教育创新计划项目(2019SY018) （2019SY018）
南京大学生命科学分析化学国家重点实验室(SKLACLS1911) （SKLACLS1911）
晋中学院"1331工程"创新团队(jzxycxtd2019007) （jzxycxtd2019007）
