Environmental Fingerprints of Nonoxygen Heteroatomic Molecules in Aquatic Dissolved Organic Matter Elucidated by Ultra-High-Resolution Mass Spectrometry DOI
Jingjing Sun, Qing‐Long Fu, Pingqing Fu

et al.

ACS ES&T Water, Journal Year: 2024, Volume and Issue: 4(11), P. 5027 - 5038

Published: Oct. 30, 2024

The quality and chemodiversity of aquatic dissolved organic matter (DOM), crucial to global carbon cycling ecological functions, are affected by microbial anthropogenic activities. In this study, molecular characteristics DOM collected from 14 field water samples were compared with three standard the International Humic Substances Society using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Results indicated that microbially terrestrially derived contributed surface groundwater pool, higher lability (higher H/Ciw) in than IHSS standards, which was related overall impact diverse biogeochemical processes factors. perturbations contribute more nonoxygen heteroatomic (N, S, Cl atoms) molecules water, pollutants (surfactants sucralose) had significant signatures waters intensive emissions. A strong correlation among indicators, nutrients, synthetic results activities within basin heteroatoms increased diversity. This study has highlighted environmental reflecting factors, shedding new insights into freshwater health.

Language: Английский

Characterization of halogenated organic compounds by the Fourier transform ion cyclotron resonance mass spectrometry: A critical review DOI Open Access

Shixi Wu,

Manabu Fujii, Xin Yang

et al.

Water Research, Journal Year: 2023, Volume and Issue: 246, P. 120694 - 120694

Published: Oct. 4, 2023

Language: Английский

Citations

14
Chemodiversity of soil dissolved organic matter complementally improved by stepwise elution and electrospray ionization modes DOI
Shujuan Zhuo, Qin Rong, Qing‐Long Fu

et al.

Organic Geochemistry, Journal Year: 2025, Volume and Issue: 203, P. 104965 - 104965

Published: Feb. 22, 2025

Language: Английский

Citations

0
Development of a Nontargeted Algorithm for Per- and Polyfluoroalkyl Substances in the FT-ICR Mass Spectra of Complex Organic Mixtures DOI
Qing‐Long Fu, Y.S. Cheng, Jibao Liu

et al.

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

The unrivaled mass resolving power and subppm error enable the application of Fourier transform ion cyclotron resonance spectrometry (FT-ICR MS) for nontargeted screening per- polyfluoroalkyl substances (PFAS). Few automated FT-ICR MS methods exist analysis PFAS in solutions containing other dissolved organic matter. In this study, isotopic pattern dynamic homologous series inspection were complementarily employed FTMSDeu algorithm to simultaneously assign chemical formulas molecules, with an overall assignment accuracy 91.2% 1,802 unique their 11,634 formulas. negative effects fluorine-related isobaric isotopes sub-mDa differences on formula natural matter addressed by empirical F/(H + X) rule adoption a threshold number plus number. There 203 one novel formula, C9H6O4S1I1F11, identified fluoropolymer industry-impacted river water sample using our analyzing spectra. Overall, results study highlighted great potential updated high-throughput spectra complex mixtures from real environmental samples.

Language: Английский

Citations

0
New Insight into the Source Contribution of Dissolved and Particulate Organic Matter in a Typical Macrophyte-Dominated Lake Using Optical Spectroscopy, Stable Isotopes, and FT-ICR MS DOI
Yuxin Zhang, Shasha Liu, Yue Qiu

et al.

ACS ES&T Water, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Language: Английский

Citations

0
Simultaneous Elucidation of the Chemodiversity of Dissolved Organic Matter and Quantitation of Trace Organic Contaminant Sucralose by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry DOI

Qian You,

Y.S. Cheng, Qing‐Long Fu

et al.

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) has become a cutting-edge technique for molecular characterization of dissolved organic matter (DOM) and trace contaminants. Nevertheless, FT-ICR MS is rarely applied to simultaneously elucidate DOM chemodiversity quantify the concentrations Compared conventional solid-phase extraction (SPE), pH-dependent fractionation molecules using sequential SPE strategy significantly enhanced recovery carbon yielded more chemical formulas from environmental samples (p < 0.05). The at circumneutral pH provided exclusive isolation some hydrogen-rich oxygen-poor molecules, caused 5-fold reduction in matrix effects, improved detection limits structure typical wastewater indicator, sucralose, was successfully validated analysis with tandem hydrogen/deuterium exchange measurements. With standard addition method, quantitation sucralose extracts isolated were estimated be 0.26 0.87 μg/L, respectively. representative urban lake measured by (e.g., 0.9-4.1 μg/L) comparable those determined liquid chromatography coupled an Orbitrap analyzer. findings this study expand application research highlighting its potential identifying contaminants, quantifying their concentrations, elucidating inform contaminant sources aquatic systems.

Language: Английский

Citations

0
Copper Safeguards Dissolved Organic Matter from Sunlight-Driven Photooxidation DOI

Yanheng Pan,

Shikha Garg, Qing‐Long Fu

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(50), P. 21178 - 21189

Published: Dec. 8, 2023

Sunlight plays a crucial role in the transformation of dissolved organic matter (DOM) and associated carbon cycle aquatic environments. This study demonstrates that presence nanomolar concentrations copper (Cu) significantly decreases rate photobleaching loss electron-donating moieties three selected types DOM (including both terrestrial microbially derived DOM) under simulated sunlight irradiation. Employing Fourier transform ion cyclotron resonance mass spectrometry, we further confirm Cu selectively inhibits photooxidation lignin- tannin-like phenolic present within DOM, agreement with reported inhibitory impact on compounds. On basis rate, calculate contribution to be at least 29-55% wavelength range 220-460 nm. The inhibition electrons from during irradiation is also explained quantitatively by developing mathematical model describing hydrogen peroxide (a proxy measure formation absence Cu. Overall, this advances our understanding natural sunlit waters.

Language: Английский

Citations

8
FT-ICR MS Spectral Improvement of Dissolved Organic Matter by the Absorption Mode: A Comparison of the Electrospray Ionization in Positive-Ion and Negative-Ion Modes DOI
Qing‐Long Fu, Chao Chen, Yang Liu

et al.

Analytical Chemistry, Journal Year: 2023, Volume and Issue: 96(1), P. 522 - 530

Published: Dec. 21, 2023

Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) in the absorption mode has a superior performance over conventional magnitude mode. However, this improved for analysis of dissolved organic matter (DOM) negative-ion and positive-ion modes electrospray ionization [ESI(−) ESI(+), respectively] remains unknown. This study systemically compared by DOM FT-ICR MS spectra acquired with low-field high-field magnet instruments between two charge modes. The enhanced resolution signal-to-noise ratio values peaks factors 1.88–1.94 1.60–1.72, respectively. significantly higher improvement ESI(+) than that ESI(−) could resolve extensive occurrence doublets mode, yielding some formulas exclusively identified findings have demonstrated superiority improving quality during routine postdata highlighted its great potential characterizing molecular composition using technique both

Language: Английский

Citations

7
Environmental Fingerprints of Nonoxygen Heteroatomic Molecules in Aquatic Dissolved Organic Matter Elucidated by Ultra-High-Resolution Mass Spectrometry DOI
Jingjing Sun, Qing‐Long Fu, Pingqing Fu

et al.

ACS ES&T Water, Journal Year: 2024, Volume and Issue: 4(11), P. 5027 - 5038

Published: Oct. 30, 2024

The quality and chemodiversity of aquatic dissolved organic matter (DOM), crucial to global carbon cycling ecological functions, are affected by microbial anthropogenic activities. In this study, molecular characteristics DOM collected from 14 field water samples were compared with three standard the International Humic Substances Society using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Results indicated that microbially terrestrially derived contributed surface groundwater pool, higher lability (higher H/Ciw) in than IHSS standards, which was related overall impact diverse biogeochemical processes factors. perturbations contribute more nonoxygen heteroatomic (N, S, Cl atoms) molecules water, pollutants (surfactants sucralose) had significant signatures waters intensive emissions. A strong correlation among indicators, nutrients, synthetic results activities within basin heteroatoms increased diversity. This study has highlighted environmental reflecting factors, shedding new insights into freshwater health.

Language: Английский

Citations

1