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3,5-dihydroxybenzoic acid/vanillyl phenols ratio
2
Acids/alkanes ratio
2
Age, 14C AMS
2
Age, dated
2
Arctic
Biomarkers
2
Calculated
2
Carbon Preference Index, fatty acids
2
Carbon Preference Index, n-Alkanes
Carbon, organic, total
2
Carbon/Nitrogen ratio
Cinnamyl phenols/vanillyl phenols ratio
2
Comment
2
Cutin, per unit mass organic carbon
2
Cutin/Lignin ratio
2
Elemental analyzer EA, Thermo Scientific, FlashEA 1112
2
Fraction modern carbon
2
Fraction modern carbon, error, relative
2
Gas chromatograph GC, Agilent, GC 7820; coupled with Quadrupole mass selective detector MSD, Agilent, EI 5977B
2
Isotope ratio mass spectrometry-elemental analyzer IRMS-EA, Thermo Finnigan, Delta XP; Elemental analyzer EA, Thermo Scientific, FlashEA 1112
2
Laboratory code/label
2
Lignin, per unit mass organic carbon
2
MICADAS accelerator mass spectrometer AMS, Ionplus; according to McIntyre et al. 2017 and Haghipour et al. 2018
2
Multiple investigations
2
Nitrogen, total
2
Permafrost
2
Sample ID
2
Syringic acid/syringaldehyde ratio
2
Syringyl phenols/vanillyl phenols ratio
2
Vanillic acid/vanillin ratio
2
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