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- Title
A water‐stable luminescent sensor based on Cd<sup>2+</sup> coordination polymer for detecting nitroimidazole antibiotics in water.
- Authors
Ji, Xiaoxi; Wu, Shuangyan; Song, Dongxue; Chen, Shiyu; Chen, Qing; Gao, Enjun; Xu, Jin; Zhu, Xiaopeng; Zhu, Mingchang
- Abstract
Effective detection of antibiotics is essential for human health and environmental protection. A new type of water‐stable fluorescent sensor was synthesized and characterized. The antibiotics in the water were detected by fluorescence spectroscopy. The complex presents excellent fluorescence quenching effect on nitroimidazole antibiotics with high selectivity and sensitivity and shows lower limits of detection with a wider linear range. The limit of detection (LOD) of the complex are 0.46 nM for ornidazole (ODZ), 0.73 nM for dimetridazole (DTZ), and 0.46 nM for metronidazole (MDZ). The Ksv values are calculated to be 1.11 × 104 M−1 for ODZ, 0.70 × 104 M−1 for DTZ, and 1.10 × 104 M−1 for MDZ. In addition, the sensor is recyclable and is expected to be used in the detection of nitroimidazole antibiotics in water. The luminescence quenching of Cd2+ complex towards nitroimidazole antibiotics ascribed to the combination of electron transfer and energy transfer.
- Subjects
COORDINATION polymers; ANTIBIOTICS; LUMINESCENCE quenching; FLUORESCENCE quenching; FLUORESCENCE spectroscopy; ENERGY transfer; CHARGE exchange
- Publication
Applied Organometallic Chemistry, 2021, Vol 35, Issue 10, p1
- ISSN
0268-2605
- Publication type
Article
- DOI
10.1002/aoc.6359