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Gas chromatography/isotope ratio mass spectrometry of leaf wax n‐alkalines from plants of differing carbon dioxide metabolisms
Author(s) -
Rieley Gareth,
Collister James W.,
Stern Benjamin,
Eglinton Geoffrey
Publication year - 1993
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290070617
Subject(s) - chemistry , wax , isotope ratio mass spectrometry , mass spectrometry , carbon dioxide , isotopes of carbon , gas chromatography , isotope , gas chromatography–mass spectrometry , photosynthesis , chromatography , crassulacean acid metabolism , environmental chemistry , organic chemistry , biochemistry , total organic carbon , physics , quantum mechanics
Individual n‐alkalines isolated from the leaf‐surface waxes of plants utilizings differing photosynthetic pathways were analysed using gas chromatography/isotope mass spectrometry (GC/IRMS), in order to obtain the ratios of 13 C to 12 (δ 13 ). Marked differences in the average 13 C‐depletion of the n‐alkalines relative to whole leaf tissues were observed (C 3 = −7.7‰; C 4 = −9.9‰; CAM = −11‰). Additionally, all three metabolic types exhibited considerable differences of 13 C‐depletion between n‐alkaline homologues isolated from the same plant.