Electrochemical sensor based on Pd@Nb2C nanocomposites for rapid and sensitive detection of ciprofloxacin
This study introduced an electrochemical sensor for the rapid, sensitive, and accurate detection of ciprofloxacin (CIP). The sensor utilized a screen-printed carbon electrode (SPCE) modified with Pd@Nb2C nanocomposites, which were prepared through the in-situ reduction of palladium nitrate on Nb2C n...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tsinghua University Press
2025-03-01
|
| Series: | Food Science of Animal Products |
| Subjects: | |
| Online Access: | https://www.sciopen.com/article/10.26599/FSAP.2025.9240097 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | This study introduced an electrochemical sensor for the rapid, sensitive, and accurate detection of ciprofloxacin (CIP). The sensor utilized a screen-printed carbon electrode (SPCE) modified with Pd@Nb2C nanocomposites, which were prepared through the in-situ reduction of palladium nitrate on Nb2C nanosheets, resulting in a uniform distribution of Pd nanoparticles. Subsequently, they were drop-coated onto the SPCE surface, forming a Pd@Nb2C/SPCE electrochemical sensing platform. The electrochemical analysis demonstrated the excellent electrochemical performance of the sensor. Pd@Nb2C/SPCE showed a consistent linear correlation between redox peak current (IP) and CIP concentration (cCIP) in the range of 10–150 μmol/L, boasting a detection limit of 3 μmol/L. Notably, this technique tracked CIP in both whole and skimmed milk, achieving a high recoveries of 96.36%–105.40% (n = 3). Moreover, the sensor exhibited exceptional selectivity towards CIP, remaining unaffected by various interferences such as sulphonamide, amoxicillin, tetracycline, and chloramphenicol. These findings hold enormous promise for enabling real-time and rapid monitoring of CIP in milk. |
|---|---|
| ISSN: | 2958-4124 2958-3780 |