title: Fabrication of a Selective and Sensitive Sensor Based on Molecularly Imprinted Polymer/Acetylene Black for the Determination of Azithromycin in Pharmaceuticals and Biological Samples.
abstract: A new selective and sensitive sensor based on molecularly imprinted polymer/acetylene black (MIP/AB) was developed for the determination of azithromycin (AZM) in pharmaceuticals and biological samples. The MIP of AZM was synthesized by precipitation polymerization. MIP and AB were then respectively introduced as selective and sensitive elements for the preparation of MIP/AB-modified carbon paste (MIP/ABP) electrode. The performance of the obtained sensor was estimated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. Compared with non-molecularly imprinted polymer (NIP) electrodes, NIP/ABP electrodes, and MIP-modified carbon paste electrodes, MIP/ABP electrode exhibited excellent current response toward AZM. The prepared sensor also exhibited good selectivity for AZM in comparison with structurally similar compounds. The effect of electrode composition, extraction parameters, and electrolyte conditions on the current response of the sensor was investigated. Under the optimized conditions, the prepared sensor showed two dynamic linear ranges of 1.0 × 10-7 mol L-1 to 2.0 × 10-6 mol L-1 and 2.0 × 10-6 mol L-1 to 2.0 × 10-5 mol L-1, with a limit of detection of 1.1 × 10-8 mol L-1. These predominant properties ensured that the sensor exhibits excellent reliability for detecting AZM in pharmaceuticals and biological fluids without the assistance of any separation techniques. The results were validated by the high-performance liquid chromatography-tandem mass spectrometry method.
authors.affiliation: State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Tao
authors.affiliation: Department of Chemistry, Changwon National University, Changwon, 641-773, Republic of Korea.|Central Laboratory, Yanbian University Hospital, Yanji, Jilin, 133000, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Jin
authors.affiliation: State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Song
authors.affiliation: State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Jing
authors.affiliation: State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Luo
authors.affiliation: State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Yusun
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Yikai
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Department of Chemistry, Changwon National University, Changwon, 641-773, Republic of Korea.
authors.forename: Yong-Ill
authors.initials: YI
authors.lastname: Lee
authors.affiliation: State Key Laboratory of Environment Health (Incubation), Key Laboratory of Environment and Health, Ministry of Education, Key Laboratory of Environment and Health (Wuhan), Ministry of Environmental Protection, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, Hubei, 430030, China.
authors.forename: Surong
authors.initials: S
authors.lastname: Mei
mesh_terms: D000327:Adsorption; D000480:Alkynes / Q000138:chemical synthesis*; D000900:Anti-Bacterial Agents / Q000032:analysis*; D017963:Azithromycin / Q000032:analysis*; D011232:Chemical Precipitation; D055664:Electrochemical Techniques; D006863:Hydrogen-Ion Concentration; D057230:Limit of Detection; D054802:Molecular Imprinting; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis*; D015203:Reproducibility of Results
chemical_list: D000480:Alkynes; D000900:Anti-Bacterial Agents; D011108:Polymers; D017963:Azithromycin
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