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Advancing soil C characterization using HRMS and NMR


EMSL Project ID
48698

Abstract

Soil organic matter consists of diverse and complex mixture of hundreds to thousands biological and metabolic products that are poorly characterized using current techniques. We seek to develop a high through put, high-resolution mass spectrometry technique for the assignment of molecular formula to soil organic molecules. By establishing the identity of the majority of these compounds in highly related samples we will be able to discern signatures of biological activity and follow the flow and transformation of carbon through the terrestrial ecosystem. This insight will enable soil ecologist and climate scientist to determine the mechanisms by which soil organic molecules are stabilized belowground and what is the impact of climate, land use, cropping on the “health” of the soil. The goal of this project is to develop adaptable EMSL capability for characterizing soil C by sampling representative organic molecules from intact and fractionated soils preserving as much chemical identity as possible.

Project Details

Start Date
2014-10-01
End Date
2015-12-31
Status
Closed

Team

Principal Investigator

Nancy Hess
Institution
Environmental Molecular Sciences Laboratory

Team Members

Yina Liu
Institution
Texas A&M University

Malak Tfaily
Institution
University of Arizona

Kristyn Roscioli
Institution
Pacific Northwest National Laboratory

Rosalie Chu
Institution
Environmental Molecular Sciences Laboratory

Patrick Reardon
Institution
Oregon State University

Thomas Fillmore
Institution
Environmental Molecular Sciences Laboratory

Nancy Washton
Institution
Pacific Northwest National Laboratory

Nikola Tolic
Institution
Environmental Molecular Sciences Laboratory

Sarah Burton
Institution
Environmental Molecular Sciences Laboratory

Andrew Lipton
Institution
Environmental Molecular Sciences Laboratory

Jesse Sears
Institution
Environmental Molecular Sciences Laboratory

Vanessa Bailey
Institution
Pacific Northwest National Laboratory