Lipid-free tuna muscle samples are suitable for total mercury analysis

Methylmercury is widely known to be a toxic substance in the human, especially a nervous system. However, it is difficult to accurately measure the amount of methylmercury in blood, and the form of methylmercury is variously presented. The purpose of study was to compare the total mercury and methylmercury measurements techniques and detection levels between analytical institutions in two countries using the same elderly human blood samples. Total mercury using gold amalgamation direct mercury analysis method (both) and methylmercury using the dithizone extraction and gas chromatography-electron capture detector (GC-ECD) method (N Lab in Japan) and the cold vapor atomic fluorescence spectrophotometer (CVAFS) method (D Lab in Korea) were measured in 47 subjects who agreed to participate in this study. Total mercury concentrations in both analytical laboratories were observed at similar levels (9.4 versus 9.5 ug/kg, p=0.898) and the distribution was highly correlated. However, the concentration of methylmercury showed some difference between two laboratories (9.1 versus 8.6 ug/kg, p<0.001). Due to different recovery rates by different analytical methods, it is assumed that the methyl/total mercury ratio in N lab in Japan was higher than D lab in Korea (96.8 versus 90.4%, p<0.001). The GC-ECD was more sensitive method than CVAFS in methylmercury analytic techniques.

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A Review of the Status of Total Mercury Analysis (W. Dickinson Burrows)

Heavy Metals in the Aquatic Environment ◽

10.1016/b978-0-08-018068-7.50014-9 ◽

1975 ◽

pp. 63-72

Author(s):

JAMES H. FINGER ◽

TOM B. BENNETT

Keyword(s):

Total Mercury ◽

Mercury Analysis ◽

The Status

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The use of an oxygen bomb as an alternative method for digestion of fish tissue for total mercury analysis

The Science of The Total Environment ◽

10.1016/0048-9697(92)90380-b ◽

1992 ◽

Vol 125 ◽

pp. 33-38 ◽

Cited By ~ 6

Author(s):

R.J. Carter ◽

V.S. Rajendram

Keyword(s):

Total Mercury ◽

Fish Tissue ◽

Oxygen Bomb ◽

Alternative Method ◽

Mercury Analysis

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Mercury analysis working party of the bureau international technique du chlore, standardization of methods for the determination of traces of mercury Part II. Determination of total mercury in materials containing organic matter

Analytica Chimica Acta ◽

10.1016/s0003-2670(01)83150-0 ◽

1976 ◽

Vol 87 (1) ◽

pp. 258

Keyword(s):

Organic Matter ◽

Total Mercury ◽

Working Party ◽

Mercury Analysis

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Sampling the Edible Muscle of the Swordfish (Xiphias gladius) for Total Mercury Analysis

Journal of the Fisheries Research Board of Canada ◽

10.1139/f73-201 ◽

1973 ◽

Vol 30 (8) ◽

pp. 1251-1252 ◽

Cited By ~ 10

Author(s):

H. C. Freeman ◽

D. A. Horne

Keyword(s):

Muscle Tissue ◽

Total Mercury ◽

Small Sample ◽

Mercury Analysis ◽

The Mean ◽

Xiphias Gladius ◽

Whole Muscle ◽

Transverse Muscle

Total mercury was uniformly distributed in the edible muscle tissue of three swordfish, demonstrating that a small sample of muscle tissue taken from any region is representative of the whole muscle tissue when used for mercury analysis. The mean ± SE total mercury concentrations of longitudinal, depth, and transverse muscle sections from three swordfish were: 1.07 ± 0.04, 1.03 ± 0.04, and 0.99 ± 0.08 μg/g; 0.15 ± 0.01, 0.15 ± 0.03, and 0.14 ± 0.02 μg/g; and 0.55 ± 0.01, 0.61 ± 0.04, and 0.54 ± 0.06 μg/g, respectively.

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