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. 2021 Nov 30;11(12):827. doi: 10.3390/metabo11120827

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Distribution of the different compound classes along the retention time (RT) according to their m/z; the three tested columns (XBridge Amide column, Aquity CSH-C18 column and Aquity BEH-C18 column) are shown. Positive analytes: CAR, carnitines; CER, ceramides; DG, diacylglycerols; DGDG, digalactosyldiacylglycerols; LPC, lyso-glycerophosphocholines; MG, monoacylglycerols; MGDG, monogalactosyldiacylglycerols; SM, sphingomyelins; TG, triacylglycerols. Negative analytes: FA, free fatty acids; LPA, lyso-glycerophosphates; LPE, lyso-glycerophosphoethanolamines; LPI, lyso-glycerophosphoinositols; LPG, lyso-glycerophosphoglycerols; LPS, lyso-glycerophosphoserines; PA, glycerophosphates; PC, glycerophosphocholines; PE, glycerophosphoethanolamines; PI, glycerophosphoinositols; PG, glycerophosphoglycerols; PS, glycerophosphoserines.