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Applied Biological Chemistry
Fig. 1 | Applied Biological Chemistry

Fig. 1

From: Improved annotation and quantification of metabolites in rice (Oryza sativa L.) seeds using two-dimensional gas chromatography–time-of-flight mass spectrometry

Fig. 1

GC-TOFMS (A) and GC  ×  GC-TOFMS (B) analytical ion chromatogram (AIC) of polar metabolites extracted from Dongjin. Peak: 1, Pyruvic acid; 2, Lactic acid; 3, Alanine; 4, Oxalic acid; 5, Valine; 6, Serine-1; 7, Ethanolamine; 8, Leucine; 9, Glycerol; 10, Phosphoric acid; 11, Isoleucine; 12, Proline; 13, Glycine; 14, Succinic acid;15, Glyceric acid; 16, Fumaric acid; 17, Serine-2; 18, Threonine; 19, β-Alanine; 20, Malic acid; 21, Salicylic acid; 22, Methionine; 23, Pyroglutamic acid; 24, Aspartic acid; 25, 4-Aminobutytic acid; 26, Cysteine; 27, Threonic acid; 28, Glutamic acid; 29, p-Hydroxybenzoic acid; 30, Phenylalanine; 31, Asparagine; 32, Xylose-1; 33, Xylose-2; 34, Ribitol (internal standard); 35, Vanillic acid; 36, Glutamine; 37, Shikimic acid; 38, Citric acid; 39, Fructose-1; 40, Fructose-2; 41, Lysine; 42, p-Coumaric acid; 43, Tyrosine; 44, Mannitol; 45, Ferulic acid; 46, Inositol; 47, Caffeic acid; 48, Tryptophan; 49, Sinapinic acid; 50, Sucrose; 51, Raffinose

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