MOF-derived Co2CuS4 nanoparticles with gold-decorated reduced graphene oxide for electrochemical determination of chloramphenicol in real samples

被引：13

作者：

Daie-Naseri, Seyed Mohammadamin ^{[1
]}

Ghasemi, Shahram ^{[1
]}

Hosseini, Sayed Reza ^{[1
]}

Mousavi, Farimah ^{[1
]}

机构：

[1] Univ Mazandaran, Fac Chem, Babolsar, Iran

来源：

FOOD CHEMISTRY | 2024年 / 457卷

关键词：

Sensor; Antibiotic; Dual -core MOF; Transition bi-metallic sulfide; Milk; Honey; METAL-ORGANIC-FRAMEWORKS; ENERGY-STORAGE; PALLADIUM NANOPARTICLES; SENSITIVE DETERMINATION; SENSOR; FOOD; NANOSHEETS; COMPOSITE; NANOCOMPOSITES; FABRICATION;

D O I：

10.1016/j.foodchem.2024.140026

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Despite the beneficial effects of antibiotics such as chloramphenicol (CAP), they exert some destructive impacts on human health. We designed an electrochemical sensor based on reduced graphene oxide (rGO)/Au/Co2CuS4 nanohybrid for determination of CAP in food and biological samples. The Co2CuS4 was synthesized from binuclear metal-organic framework (CoCu-BDC) through a two-step process. Nanohybrid was characterized by Xray photoelectron spectroscopy and transmission electron microscopy. The rGO/Au/Co2CuS4 provides more active sites and good electrical conductivity to reduce charge transfer resistance and improve the electrocatalytic activity for determination of CAP. The prepared sensor has a wide linear range from 7 to 141 nM with a limit of detection of 2.5 nM and a limit of quantification of 21.92 nM. It also provided high selectivity and repeatability with a relative standard deviation of 2.6%. Stability studies showed that the electrode has acceptable performance with efficiency of 95% after 33 days.

引用

页数：13

共 88 条

[1]

Alam S, 2017, 2017 INTERNATIONAL CONFERENCE ON BROADBAND COMMUNICATION, WIRELESS SENSORS AND POWERING (BCWSP), P1

[2] N-Hydroxysuccinimide crosslinked graphene oxide-gold nanoflower modified SPE electrode for sensitive detection of chloramphenicol antibiotic [J].