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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 37, Number 5
JKCSEZ 37(5)
October 20, 1993 

 
Title
Determination of Trace Level Mercury in Bio-Materials by Square Wave Anodic Stripping Voltammetry

네모파 산화전극벗김 전압전류법을 이용한 생체시료 중의 미량 수은 분석
Author
Il Kwang Kim, Sung Woo Park, Jong Hyun Han, Youn Geun Kim, Hyun Ja Chun, Kyung Ok Park

김일광, 박성우, 한종현, 김윤근, 천현자, 박경옥
Keywords
Abstract
생체시료 중의 미량수은정량을 glassy carbon 전극을 사용하는 네모파 산화전극벗김 전압전류법으로 연구하였다. 생체시료는 분석에 들어가기 전에 질산과 황산 그리고 과망간산 칼륨으로 충분히 온침시켰다. 수은의 검출한계는 석출시간, 석출전위, pH, 그리고 저어줌속도 등에 의하여 크게 영향을 받았다. -1.0 volts에서 240초간 400rpm으로 저어주면서 수은을 석출하였을 때 검출한계는 0.5 ppb (2.5 × 10-9 M)이하였다. 이 방법은 분석시간이 짧고 감도가 높기 때문에 생체시료 중의 미량수은 분석에 유용하였다.

The determination of trace level mercury in bio-materials has been investigated by the square wave anodic stripping voltammetry (ASV)-technique at glassy carbon electrode. Prior to analysis, the bio-materials were digested with HNO3/H2SO4 mixture and KMnO4 was added to complete the oxidation. The detection limit of the mercury varied greatly with deposition time, deposition potential, pH and stirring rate. When deposition is carried out for 240 sec with 400 rpm stirring at -1.0 volts vs. Ag/AgCl, the detection limit was below 0.5 ppb (2.5 × 10-9 M). The method is recommended for trace level mercury analysis of biomaterials because this procedure is time saving and has higher sensitivity.

Page
477 - 482
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