In order to measure the minute amount of Cu(II) in our environment, cyclic voltammetry (CV) and square-wave stripping voltammetry (SWSV) were performed for a trace copper assay using bismuth immobilized on a carbon nanotube paste electrode. An analytical working range of 30 to 240 μg/L Cu(II) was obtained for CV and SWSV. The SWSV precision obtained was 0.47 % (n = 15) RSD in 30.0 μg/L Cu(II). The detection limit obtained was 3.1 ng/L Cu(II) using SWSV, while the CV yielded the nano-range detection limit through the pre-concentration step. By using this research method, Cu(II) value could be determined in the urine of human sample and in the brain of fish sample. This research can be effectively applied to other cases of measuring minute amount of Cu(II) in living organisms.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 재료 및 기기
  2.2. 실험방법
 3. 결과 및 고찰
  3.1. 순환전압전류(CV)곡선과 벗김 전압전류(SWSV)곡선을 사용한 전극비교
  3.2. 벗김 전압전류(SWSV)곡선의 최적화 및 전극의 안전성
  3.3. 생체 시료분석에서의 응용
 4. 결 론
 참 고 문 헌

• 이장현(평택대학교 교양학부) | Chang-Hyun Lee (Division of General Education, Pyeongtaek University) Corresponding author