일회용 전기화학적 에탄올 센서

Disposable Type Electrochemical Ethanol Sensor

  • Kim, Moon Hwan (Department of Chemistry, Kwangwoon University) ;
  • Yoo, Jae Hyun (Department of Chemistry, Kwangwoon University) ;
  • Oh, Hyun Joon (Department of Chemistry, Kwangwoon University) ;
  • Cha, Geun Sig (Department of Chemistry, Kwangwoon University) ;
  • Nam, Hakhyun (Department of Chemistry, Kwangwoon University) ;
  • Park, Sung Woo (Korea National Institute of Scientific Investigation) ;
  • Kim, Young Man (Advaced Analysis Center, Korea Institute of Science & Technology)
  • 투고 : 1999.03.02
  • 발행 : 1999.06.25

초록

스크린 프린팅 기술을 이용하여 일회용 에탄올 센서를 개발하고 전기화학적 방법으로 그 성능을 조사하였다. 일회용 에탄올 센서는 폴리에스테르 기질 위에 탄소와 은 반죽 그리고 절연체 잉크로 작업 및 기준전극의 감응부위와 전기적 접촉부위의 형상을 차례로 인쇄한 후 알코올탈수소효소(ADH) 또는 알코올산화효소(AOD)를 알려진 전자전달 매개체(mediator)와 함께 작업전극에 고정시켜 제작하였다. 일회용 센서의 제작 과정에서 감응도와 재현성을 높이기 위하여 프린팅한 탄소 작업전극을 전처리 하는 몇 가지 방법들을 적용하고 그 결과들을 비교하였다. 제작된 일회용 센서는 소량의 혈액시료로 음주측정을 하는데, 그리고 발효공정 제어 등에 유용하게 사용될 수 있다.

A single use, screen-printed sensor for the measurement of liquid phase ethanol was developed and its electrochemical performance was investigated. Disposable type edthanol sensor was fabricated by serially screen printing the carbon paste, silverd pasted and insulator inlon a polyester substrate to pattern working and reference electrode sites and electrical contact. Alcohol dehydrogenase(ADH) or alcohol oxidase(AOD) together with appropriate electron transfer mediators was immobilized on the working electrode. To improve the sensitivity and reproducibility of carbon paste electrode, some pretreatment procedures were applied and their resultant electrochemical performance was examined. The disposable type electrochemical ethanol sensor developed in this study conveniently determines the ethanol in liquid samples such as blood and in fermentation process.

키워드

참고문헌

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