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Title: Reviews and syntheses: Opportunities for robust use of peak intensities from high-resolution mass spectrometry in organic matter studies

Journal Article · · Biogeosciences (Online)
ORCiD logo [1]; ORCiD logo [2];  [2];  [2];  [1];  [3];  [4];  [1]; ORCiD logo [5]
  1. Environmental Molecular Sciences Laboratory, Richland, WA (United States)
  2. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  3. University of Arizona, Tucson, AZ (United States)
  4. University of Uppsala (Sweden)
  5. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Washington State University, Pullman, WA (United States)

Earth's biogeochemical cycles are intimately tied to the biotic and abiotic processing of organic matter (OM). Spatial and temporal variations in OM chemistry are often studied using direct infusion, high-resolution Fourier transform mass spectrometry (FTMS). An increasingly common approach is to use ecological metrics (e.g., within-sample diversity) to summarize high-dimensional FTMS data, notably Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). However, problems can arise when FTMS peak-intensity data are used in a way that is analogous to abundances in ecological analyses (e.g., species abundance distributions). Using peak-intensity data in this way requires the assumption that intensities act as direct proxies for concentrations. Here, we show that comparisons of the same peak across samples (within-peak) may carry information regarding variations in relative concentration, but comparing different peaks (between-peak) within or between samples does not. We further developed a simulation model to study the quantitative implications of using peak intensities to compute ecological metrics (e.g., intensity-weighted mean properties and diversity) that rely on information about both within-peak and between-peak shifts in relative abundance. We found that, despite analytical limitations in linking concentration to intensity, ecological metrics often perform well in terms of providing robust qualitative inferences and sometimes quantitatively accurate estimates of diversity and mean molecular characteristics. We conclude with recommendations for the robust use of peak intensities for natural organic matter studies. A primary recommendation is the use and extension of the simulation model to provide objective guidance on the degree to which conceptual and quantitative inferences can be made for a given analysis of a given dataset. Broad use of this approach can help ensure rigorous scientific outcomes from the use of FTMS peak intensities in environmental applications.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
Environmental Molecular Sciences Laboratory; USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2475440
Report Number(s):
PNNL-SA--179733
Journal Information:
Biogeosciences (Online), Journal Name: Biogeosciences (Online) Journal Issue: 20 Vol. 21; ISSN 1726-4189
Publisher:
Copernicus Publications, EGUCopyright Statement
Country of Publication:
United States
Language:
English

References (68)

Fourier transform ion cyclotron resonance mass spectrometry: A primer journal January 1998
Detecting the signature of permafrost thaw in Arctic rivers: SIGNATURE OF PERMAFROST THAW IN RIVERS journal April 2015
The hidden side of diversity: Effects of imperfect detection on multiple dimensions of biodiversity journal August 2021
Dissolved organic compounds with synchronous dynamics share chemical properties and origin journal September 2021
An overview of matrix effects in liquid chromatography-mass spectrometry journal October 2010
A History of Molecular Level Analysis of Natural Organic Matter by FTICR Mass Spectrometry and The Paradigm Shift in Organic Geochemistry journal December 2020
Coupling trapped ion mobility spectrometry to mass spectrometry: trapped ion mobility spectrometry-time-of-flight mass spectrometry versus trapped ion mobility spectrometry-Fourier transform ion cyclotron resonance mass spectrometry journal July 2018
Fourier transform ion cyclotron resonance mass spectrometry (FT‐ICR‐MS) peak intensity normalization for complex mixture analyses journal March 2021
Functional ecology of fish: current approaches and future challenges journal June 2017
A comparison of species diversity estimators journal August 1999
Comparing discrimination capabilities of fluorescence spectroscopy versus FT-ICR-MS for sources and hydrophobicity of sediment organic matter journal November 2017
21 Tesla Fourier Transform Ion Cyclotron Resonance Mass Spectrometer Greatly Expands Mass Spectrometry Toolbox journal October 2016
The molecularly-uncharacterized component of nonliving organic matter in natural environments journal October 2000
Successional changes in plant species diversity and composition after clearcutting a Southern Appalachian watershed journal May 1997
External accumulation of ions for enhanced electrospray ionization fourier transform ion cyclotron resonance mass spectrometry journal September 1997
Molecular composition and origin of water-soluble organic matter in marine aerosols in the Pacific off China journal October 2018
Identification of possible source markers in marine dissolved organic matter using ultrahigh resolution mass spectrometry journal August 2009
Molecular characterization of dissolved organic matter associated with the Greenland ice sheet journal July 2010
Degradation of natural organic matter: A thermodynamic analysis journal April 2011
Sources and composition of riverine dissolved organic matter to marginal seas from mainland China journal December 2021
Molecular properties of deep-sea dissolved organic matter are predictable by the central limit theorem: Evidence from tandem FT-ICR-MS journal April 2017
Ecological theory applied to environmental metabolomes reveals compositional divergence despite conserved molecular properties journal September 2021
Rebuilding community ecology from functional traits journal April 2006
Detecting diversity: emerging methods to estimate species diversity journal February 2014
How representative are dissolved organic matter (DOM) extracts? A comprehensive study of sorbent selectivity for DOM isolation journal June 2017
Performance Evaluation of a Hybrid Linear Ion Trap/Orbitrap Mass Spectrometer journal April 2006
Tailored Ion Radius Distribution for Increased Dynamic Range in FT-ICR Mass Analysis of Complex Mixtures journal December 2012
Negative Electrospray Ionization via Deprotonation: Predicting the Ionization Efficiency journal April 2014
Structural Characterization of Dissolved Organic Matter at the Chemical Formula Level Using TIMS-FT-ICR MS/MS journal August 2020
Online Counter Gradient LC-FT-ICR-MS Enables Detection of Highly Polar Natural Organic Matter Fractions journal December 2020
MS and NMR Analysis of Isotopically Labeled Chloramination Disinfection Byproducts: Hyperlinks and Chemical Reactions journal May 2024
Evaluation of the Orbitrap Mass Spectrometer for the Molecular Fingerprinting Analysis of Natural Dissolved Organic Matter journal July 2016
Ion Accumulation Time Dependent Molecular Characterization of Natural Organic Matter Using Electrospray Ionization-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry journal December 2016
21 Tesla FT-ICR Mass Spectrometer for Ultrahigh-Resolution Analysis of Complex Organic Mixtures journal January 2018
Application of Online Liquid Chromatography 7 T FT-ICR Mass Spectrometer Equipped with Quadrupolar Detection for Analysis of Natural Organic Matter journal May 2019
Strategies for Drawing Quantitative Conclusions from Nontargeted Liquid Chromatography–High-Resolution Mass Spectrometry Analysis journal March 2020
Positive Ion Electrospray Ionization Suppression in Petroleum and Complex Mixtures journal February 2018
Soil Organic Matter Characterization by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FTICR MS): A Critical Review of Sample Preparation, Analysis, and Data Interpretation journal July 2021
Carbon Limitation Leads to Thermodynamic Regulation of Aerobic Metabolism journal May 2020
Deciphering associations between dissolved organic molecules and bacterial communities in a pelagic marine system journal January 2016
Chemodiversity of dissolved organic matter in lakes driven by climate and hydrology journal May 2014
Thermodynamically controlled preservation of organic carbon in floodplains journal May 2017
Synthetic microbe communities provide internal reference standards for metagenome sequencing and analysis journal August 2018
Using metacommunity ecology to understand environmental metabolomes journal December 2020
Persistence of dissolved organic matter explained by molecular changes during its passage through soil journal August 2019
Quantitative microbiome profiling disentangles inflammation- and bile duct obstruction-associated microbiota alterations across PSC/IBD diagnoses journal June 2019
Resolving heterogeneous macromolecular assemblies by Orbitrap-based single-particle charge detection mass spectrometry journal March 2020
Selectivity of solid phase extraction of freshwater dissolved organic matter and its effect on ultrahigh resolution mass spectra journal January 2016
Understanding the structural complexity of dissolved organic matter: isomeric diversity journal January 2019
Chemical and microbial diversity covary in fresh water to influence ecosystem functioning journal November 2019
Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (ESI FT-ICR MS): Characterization of Complex Environmental Mixtures journal January 2002
Do community-weighted mean functional traits reflect optimal strategies? journal March 2016
Quantitative mass spectrometry: an overview journal October 2016
Functional ecology and imperfect detection of species journal December 2017
Let the concept of trait be functional! journal May 2007
Assessing functional diversity in the field – methodology matters! journal November 2007
Species abundance distributions: moving beyond single prediction theories to integration within an ecological framework journal October 2007
Navigating the multiple meanings of β diversity: a roadmap for the practicing ecologist: Roadmap for beta diversity journal November 2010
The chemodiversity of paddy soil dissolved organic matter correlates with microbial community at continental scales journal October 2018
Spatial pattern of tree diversity and evenness across forest types in Majella National Park, Italy journal September 2015
Estimating Size and Composition of Biological Communities by Modeling the Occurrence of Species journal June 2005
A distance-based framework for measuring functional diversity from multiple traits journal January 2010
Evolution and Measurement of Species Diversity journal May 1972
Diversity and Evenness: A Unifying Notation and Its Consequences journal March 1973
Analytical and Computational Advances, Opportunities, and Challenges in Marine Organic Biogeochemistry in an Era of “Omics” journal September 2020
Short-Term Dynamics of North Sea Bacterioplankton-Dissolved Organic Matter Coherence on Molecular Level journal March 2016
Microbiome Datasets Are Compositional: And This Is Not Optional journal November 2017
Illuminated darkness: Molecular signatures of Congo River dissolved organic matter and its photochemical alteration as revealed by ultrahigh precision mass spectrometry journal May 2010