“…Fourier transform-ion cyclotron resonance mass spectrometry (FT-ICR-MS) is a robust method with successful applications for detailed molecular analysis in related fields like petroleomics [28][29][30] and natural or dissolved organic matter [31][32][33]. Among many other mass spectrometry-based tools [23,27,34], FT-ICR-MS is particularly suitable for lignin characterization with its ultrahigh resolving power (>200,000) and wide detection range (MW of 200-1000 Da) [35,36].…”