Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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Development of a pH/dissolved- oxygen Monitoring System Using HPTS and Rudpp

HPTS, Rudpp를 활용한 pH 및 용존산소 모니터링 시스템 연구

  • Dong Hyuk Jeong (High-tech mechatronics R&D Group, Korea Institute of Industrial Technology (KITECH)) ;
  • Daewoong Jung (High-tech mechatronics R&D Group, Korea Institute of Industrial Technology (KITECH))
  • 정동혁 (한국생산기술연구원 첨단메카트로닉스연구그룹) ;
  • 정대웅 (한국생산기술연구원 첨단메카트로닉스연구그룹)
  • Received : 2023.01.30
  • Accepted : 2023.02.16
  • Published : 2023.03.31
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Abstract

This study proposes a pH-dissolved-oxygen monitoring system using 8-HydroxyPyrene-1,3,6-trisulfonic acid Trisodium Salt (HPTS) and tris(4,7-diphenyl-1,10-phenanthroline)Ruthenium(II) chloride (Rudpp). Commercial water-quality sensors are electrochemical devices that require frequent calibration and cleaning, are subject to high maintenance costs, and have difficulties conducting measurements in real-time. The proposed pH-dissolved-oxygen monitoring system selects a thin-film sensing layer to measure the change in fluorescence intensity. This change in fluorescence intensity is based on reactions with hydrogen ions in an aqueous solution at a given pH and specific amount of dissolved oxygen. The change in fluorescence intensity is then measured using light-emitting diodes and photodiodes in response to HPTS and Rudpp. This method enables the development of a relatively small, inexpensive, and real-time measureable water-quality measurement system.

Keywords

Acknowledgement

본 논문은 2020년도 정부(과학기술정보통신부)의 재원으로 연구개발특구진흥재단의 지원을 받아 수행된 연구입니다. (2020-DD-UP-0348). 본 논문은 한국생산기술연구원 기본사업 "산업계 탄소중립을 위한 청정수소 생산-저장 및 탄소저감 모니터링 시스템 실용화 기술개발 (Kitech EH-23-0012)"의 지원으로 수행한 연구입니다.

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