Analysis of Methylmercury Concentration in the Blood of Koreans by Using Cold Vapor Atomic Fluorescence Spectrophotometry.
- Author:
Byoung Gwon KIM
1
;
Eun Mi JO
;
Gyeong Yeon KIM
;
Dae Seon KIM
;
Yu Mi KIM
;
Rock Bum KIM
;
Byung Seong SUH
;
Young Seoub HONG
Author Information
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords: Methylmercury; Blood; Limit of detection
- MeSH: Adult; Humans; Hydroxides/chemistry; Mercury/blood; Methylmercury Compounds/*blood; Potassium Compounds/chemistry; Reproducibility of Results; Republic of Korea; *Spectrophotometry, Atomic
- From:Annals of Laboratory Medicine 2012;32(1):31-37
- CountryRepublic of Korea
- Language:English
- Abstract: BACKGROUND: Methylmercury is an organic form of mercury that is highly toxic to humans. Here, we present and establish a novel method to detect methylmercury concentrations in the blood of Koreans. METHODS: Methylmercury concentration was analyzed with an automated methylmercury analytic system (MERX, Brooks Rand Co., USA) using cold vapor atomic fluorescence spectrophotometry (CVAFS). A variety of biological materials were digested in methanolic potassium hydroxide solution. The analysis method was validated by examination of certified reference material (955c, National Institute of Standard and Technology, USA). We randomly selected 30 Korean adults (age 20 yr or older) to analyze total blood mercury and methylmercury concentrations. RESULTS: The detection limit and methylmercury recovery rate using this method were 0.1 pg/L and, 99.19% (range: 89.33-104.89%), respectively. The mean blood concentration of methylmercury was 4.54+/-2.15 microg/L (N=30). The mean proportion of methylmercury to the total mercury concentration was 78.27% (range: 41.37-98.80%). CONCLUSIONS: This study is the first report to analyze blood methylmercury concentration using CVAFS in Korea. We expect that this method will contribute to the evaluation of mercury exposure and the assessment of the toxicological impact of mercury in future studies.
