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EPA-EAD: Method 1630: Methylmercury in Water
Description
| Brief Method Summary: | The sample is distilled with reagents to form methylethyl mercury (MEM) from methyl mercury. The MEM is purged from the sample with nitrogen onto a graphitic carbon trap. The MEM is thermally desorbed into an inert gas that carries the released MEM first through a pyrolytic decomposition column and then into the cell of a cold-vapor atomic fluorescence spectrometer (CVAFS). The concentration of MEM determined at the CVAFS corresponds to the concentration of methyl mercury. |
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| Scope And Application: | This method determines methyl mercury in filtered and unfiltered water. |
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| Applicable Conc Range: | 0.02-5 ng/L. |
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