상세정보
학술지
Ion-Selective Electrode Based on a Novel Biomimetic Nicotinamide Compound for Phosphate Ion Sensor
- 발행일
- 202208
- 출처
- Polymers, v.14 no.16, pp.1-12
- ISSN
- 2073-4360
- 출판사
- MDPI
- 협약과제
- 22HB1700, 직독식 수질복합센서 및 초분광영상 기반 시공간 복합 인공지능 녹조 예측 기술, 권용환
- 초록
- Phosphorus is not only an import nutrient to aquatic habitats, but it also acts as a growth inhibitor in aquatic ecosystems; however, it also aggravates environmental issues, such as eutrophication. There is a growing interest in rapid phosphorus detection to manage and protect water resources. Due to the large molecular structure and high hydration energy of phosphate ions, ion-selective electrodes (ISEs) remain in their infancy for real-time measurements in terms of practical application. In this study, a newly developed ionophore based on a biomimetic nicotinamide functional group was used to detect phosphate selectively, displaying efficient binding through charge interactions and hydrogen bonds. The ISE membrane containing silicone rubber demonstrated an effective detection performance over a long period of time. With a dynamic range between 10?닋6 and 10?닋2 M and a limit of detection of 0.85 × 10?닋6 M (26 μg/L), the newly synthesized ISE membranes demonstrated selectivity for phosphate ions over other ions, including acetate, sulfate, and chloride.
- KSP 제안 키워드
- Functional group, Hydration energy, Ion-selective electrode, Limit of detection, Long period, Molecular structure, Phosphate ion sensor, Real-time measurement, Water resource, aquatic ecosystem, detection performance
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