금속산화물센서의 이산화염소 가스에 대한 감지거동에 관한 연구
A Study on the Detection Behavior of Chlorine Dioxide on Metal Oxide Sensors
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Chlorine dioxide is very effective gas for sterilization or disinfection (in manufacturing), and does not produce harmful by-productsafter use. However, if its concentration exceeds 10 %, it become explosive and cannot be compressed or stored. Therefore, it is necessaryto measure its concentration. In this study, the concentration of chlorine dioxide with a high oxidizing strength was measured using ametal oxide sensor. The sensor was a commercially available TGS series from Figaro. The sensitivity of the sensor was inversely proportionalto a low concentration of chlorine dioxide gas below 6 ppm and returned to the initial resistance at about 6 ppm. When thegas concentration reached multiples of 10 ppm, resistance of the sensor increased to several megaohms.
Abstract
Chlorine dioxide is very effective gas for sterilization or disinfection (in manufacturing), and does not produce harmful by-productsafter use. However, if its concentration exceeds 10 %, it become explosive and cannot be compressed or stored. Therefore, it is necessaryto measure its concentration. In this study, the concentration of chlorine dioxide with a high oxidizing strength was measured using ametal oxide sensor. The sensor was a commercially available TGS series from Figaro. The sensitivity of the sensor was inversely proportionalto a low concentration of chlorine dioxide gas below 6 ppm and returned to the initial resistance at about 6 ppm. When thegas concentration reached multiples of 10 ppm, resistance of the sensor increased to several megaohms.
참고문헌 (6)
- S. Kim, "Effective gamma-ray sterilization and characterization of conductive polypyrrole biomaterials", Sci. Rep., 8, pp.3721(1)~3721(10) (2018)
- 송경빈, "Effect of Aqueous Chlorine Dioxide Treatment on the Microbial Growth and Qualities of Strawberries During Storage", Food Science and Biotechnology, 16(6), pp.1018~1022 (2007), 한국식품과학회
- 조완근, "염소살균과 오존-염소살균 수도수의 사용과 관련한 가정 트리할로메탄 노출 비교평가", 한국환경과학회지, 13(7), pp.627~635 (2004), 한국환경과학회