Optimization of an extraction protocol for organic matter from soils and sediments using high resolution mass spectrometry: selectivity and biases 

Rosalie Kae Chu1, Malak M Tfaily2, Nikola Tolic1, Jennifer E Kyle1, Errol R Robinson1, Maggie Mae Bowman3 and Ljiljana Paša-Tolić1, (1)Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, WA, United States, (2)University of Arizona, Department of Environmental Sciences, Tucson, AZ, United States, (3)Pacific Northwest National Laboratory, Richland, WA, United States