| Autor: |
Ronald C. Dressman, James E Longbottom, James J. Lichtenberg |
| Rok vydání: |
1973 |
| Předmět: |
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| Zdroj: |
Journal of AOAC INTERNATIONAL. 56:1297-1303 |
| ISSN: |
0004-5756 |
| DOI: |
10.1093/jaoac/56.6.1297 |
| Popis: |
Methyl mercury is extracted as the bromide salt from fish and sediment and as the chloride salt from water samples. All extracts are treated with a common cleanup procedure that results in the conversion of methyl mercury to the iodide salt for electron capture gas chromatographic analysis. Recoveries ranged from an average of 88.5% for water samples to averages of 95.5 and 96.3% for perch and sediments. Methods for controlling contaminants and interferences are discussed for all phases of the method. Particular problems encountered were column poisoning and detector poisoning. When the method was applied to sediment samples collected from a polluted river, a correlation could be established between total mercury and methyl mercury when the concentration of total mercury was in the 0–10 μg/g region. For samples of very high inorganic mercury, the correlation failed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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