Characterization of natural organic matter in low-carbon sediments: Extraction and analytical approaches

Patricia M. Fox,Peter S. Nico,Malak M. Tfaily,Katherine Heckman,James A. Davis

Organic Geochemistry（2017）

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摘要

•Developed protocol to extract and purify NOM from low-carbon alluvial sediments.•Higher recovery of OC in pyrophosphate vs NaOH extractions.•Pyrophosphate (PP)-extracted OC was much younger than residual OC.•Water-extracted NOM was more aliphatic and carboxyl-rich than PP-extracted NOM.

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关键词

Natural organic matter,Soil,Sediment,Chemical extraction,Chemical characterization,FTIR,ESI-FTICR-MS

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