Biological Assay of Mercury and Cadmium Ions Using DNA Immobilized on a Nanotube Paste Electrodes

• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: Suw-Young Ly Chang-Hyun Lee Hong-Rak Jung Kwang-Ho Park Yong-Keun Park Hong-Woo Suk
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제29권 제2호, 302~310쪽, 전체 9쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2012.06.30

영문 초록

Bio assay of mercury and cadmium ions were searched using voltammetric analysis using DNA doped carbon nanotube paste electrodes (DCP). The square-wave stripping voltammetryic optimized results indicated working ranges of 1-10.0 ngL-1 and 20-100ugL-1,Hg(II) Cd(II) within an accumulation time of 120 seconds, in 0.1-M phosphate buffer solutions of pH 6.3. The relative standard deviations of 5 ngL-1 Hg(II) and Cd(II) that observed were 0.14 and 0.22% (n=12), respectively, using optimum conditions. The low detection limit(S/N) was pegged at 0.1 ngL-1 (4.9×10-11M) Hg(II) and 0.2 ngL-1 (1.77×10-10M) Cd(II). The developed methods can be applied to assays in biological fish kidneys and water samples

목차

1. Introduction

2. Experimental Method

3. Results and Discussion

4. Conclusions

References

키워드

DNA-graphite nano tube paste electrode Hg(II), Cd(I I) voltammetry fish kidney