Mercury Species Fractionation and Quantification by Microwave-assisted Extraction, Selective Solvent Extraction and/or Solid Phase Extraction
Method 3200 [PDF File, 28 pages, 212 KB, July 2005]
Mercury Species Fractionation and Quantification by Microwave-assisted Extraction, Selective Solvent Extraction and/or Solid Phase Extraction
This test method uses sequential extraction and separation procedures to differentiate mercury species that are present in soils and sediments into four distinct fractions: extractable organic mercury, extractable inorganic mercury, semi-mobile mercury and non-mobile mercury. Extraction is accomplished with the aid of either microwave irradiation or ultrasound. Quantification of mercury in the different fractions may be performed using any appropriate determinative method, (e.g. Method 7473, 1631, or Methods 7470 and 7471). The test method also contains provisions for separating and quantifying individual extractable mercury species using HPLC.