Juliana Valle

TL;DR: The more pronounced change in molecular DOM composition during the incubation indicates that diagenetic modification of organic matter can be substantial compared to complete mineralization.

TL;DR: In this paper, Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) combined with excitation emission matrix (EEM) fluorescence spectroscopy and parallel factor analysis (PARAFAC) revealed a large proportion of ubiquitous dissolved organic matter (DOM) but also unique area-specific molecular signatures.

TL;DR: This study has used FT-ICR mass spectrometry and comprehensive data evaluation to assess the molecular differences of SPE-DOM between lake column water SPe-DOM and sedimentary pore water SP e-DOM in 10 Swedish boreal lakes of the Malingsbo area.

TL;DR: In this paper, the authors used ultra-high resolution mass spectrometry to trace differences in the composition of solid-phase extractable (PPL resin) pore water DOM (SPE-DOM) isolated from surface sediments of three boreal lakes before and after 40 days of anoxic incubation, with concomitant determination of CH4 and CO2 evolution.

TL;DR: In this paper , negative and positive electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI[±] FT-ICR MS) and nuclear magnetic resonance spectroscopy (NMR) were used to reveal effects of major processes on the compositional space and structural characteristics of black, white and clear water systems.