Nafion-DTPA-Glycerol 이 수식된 유리탄소전극을 사용한 미분펄스 전압전류법에 의한 구리(Ⅱ) 이온의 측정

• 영문명: Differential Pulse Voltammetric Determination of Copper(Ⅱ)Using Glassy Carbon Electrodes Modified withNafion-DTPA-Glycerol
• 발행기관: 한국환경보건학회
• 저자명: 박찬주(Chan Ju Park) 박은희(Eun Heui Park) 정근호(Keun Ho Chung)
• 간행물 정보: 『한국환경보건학회지』제30권 제2호, 115~122쪽, 전체 8쪽
• 주제분류: 공학 > 환경공학
• 파일형태: PDF
• 발행일자: 2004.06.30

영문 초록

A glassy carbon electrode(GCE) modified with nafion-DTPA (diethylene triamine-pentaacetic acid)-glycerol is used for the highly selective and sensitive determination of a trace amount of Cu(II). Various experimental parameters, which influenced the response of nafion-DTPA-glycerol modified electrode to Cu(II), are optimized. The Copper(II) is accumulated on the electrode surface by the formation of the complex in an open circuit, and the resulting surface is characterized by medium exchange, electrochemical reduction, and differential pulse voltammetry(DPV). The electrochemical response is evaluated with respect to concentration of modifier, pH and preconcentration time, quiet time, copper(II) concentration, and other variables. A linear range is obtained in the concentration range 1.0 × 10-8 M~1.0 × 10-6 M Cu(II) with 7 min preconcentration time. The detection limit(3s) is as low as 2.36 × 10-8 M (1.50 ppb).

목차

Ⅰ. 서론

Ⅱ. 연구방법

Ⅲ. 결과 및 고찰

Ⅳ. 결론

키워드

copper(II) nafion DTPA glycerol