공업화학 (Applied Chemistry for Engineering)

  • 제25권5호
  • /
  • Pages.538-543
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  • 2014
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  • 1225-0112(pISSN)
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  • 2288-4505(eISSN)
한국공업화학회 (The Korean Society of Industrial and Engineering Chemistry)
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CSM 고무로 결합된 담배 과산화효소 고정 효소전극의 전기화학적 특성

Electrochemical Properties of Tobacco Peroxidase Incorporated Enzyme Electrode Bound with CSM Rubber

  • 윤길중 (청주대학교 이공대학 응용화학과)
  • 투고 : 2014.04.29
  • 심사 : 2014.07.22
  • 발행 : 2014.10.10
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초록

시판 고추냉이 과산화효소를 대치하기 위하여 탄소반죽에 담배 잎을 고정시켜 과산화수소 감응 센서를 제작하고 그것의 감응성을 살펴보았다. 얻어진 10여 개 이상의 전극 파라미터는 효소전극이 실험 전위영역에서 정량적으로 특이성을 발휘하고 있음을 보여주었다. 특히 작은 대칭인자(${\alpha}$, 0.21)는 전극반응 속도가 전극전위의 변화에 매우 민감한 것을 보여주었다. 이런 실험적 사실들은 효소전극이 과산화수소 센서로서 정상적으로 기능을 발휘하고 있으며 담배 과산화효소가 시판 효소를 대체할 수 있음을 보여주는 것이었다.

In order to substitute for the marketed horseradish peroxidase, a hydrogen peroxide sensor embedded with tobacco leaf in carbon pastes was constructed and its sensing ability was electrochemically evaluated. Ten and more electrode parameters obtained implied that the enzyme electrode exerts its remarkable specificity quantitatively in the experimental range of potential. Especially the small symmetry factor (${\alpha}$, 0.21) showed that the electrode kinetics is very sensitive to the change of electrode potential. The experimental facts above suggested that our enzyme electrode functions as a hydrogen peroxide sensor normally and tobacco peroxidase can be used in the place of the marketed one as an alternative to marketed ones.

키워드

참고문헌

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