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Selective Sequential Extractions of Mercury

While the analysis of soil, sediment, or mine tailings for mercury and methylmercury can provide valuable information about the absolute level of local contamination, the determination of the hazard to human health or the development of a remediation strategy requires a more complete understanding of the type and concentration of specific mercury compounds present at a site.

FGS has developed an innovative method using a selective sequential extraction technique to accurately assess the type and concentration of mercury compounds typically found at contaminated geological sites. This method provides much more specific information about the expected mobility and bioaccessability of various mercury compounds, supplying you with a behavioral profile of the contaminate and a better understanding of its potential effect.

Each sample is subjected to multiple sequential extraction procedures to selectively separate specific mercury compounds at decreasing levels of bioavailability for analysis. Each step requires extended extraction, centrifuging, separation, rinsing, and preservation before analysis for mercury by cold vapor atomic fluorescence spectrometry (CV-AFS).

Contact FGS today or request a quote to find out how you can take advantage of any combination of these innovative selective sequential extraction methods to accurately and effectively determine the types of mercury compounds in your geological samples.