Figure 4. Selected izon chromatograms of metabolites extracted from tartary buckwheat (cv. T10) as MO/TMS derivatives separated on a 30 m×0.25-mm I.D. fused-silica capillary column coated with 0.25-µm CP-SIL 8 CB low bleed.

Peak identification: 1, pyruvic acid; 2, lactic acid; 3, valine; 4, alanine; 5, glycolic acid; 3′, valine; 6, serine; 7, ethanolamine; 8, glycerol; 9, leucine; 10, isoleucine; 11, proline; 12, nicotinic acid; 13, glycine; 14, succinic acid; 15, glyceric acid; 16, fumaric acid; 7′, serine; 17, threonine; 18, β-alanine; 19, malic acid; 20, salicylic acid; 21, aspartic acid; 22, methionine; 23, pyroglutamic acid; 24, 4-aminobutyric acid; 25, threonic acid; 26, arginine; 27, glutamic acid; 28, phenylalanine; 29, p-hydroxybenzoic acid; 30, xylose; 31, asparagine; 32, vanillic acid; 33, glutamine; 34, shikimic acid; 35, citric acid; 36, quinic acid; 37, fructose; 37, fructose; 38, galactose; 39, glucose; 40, syringic acid; 41, mannose; 42, inositol; 43, ferulic acid; 44, tryptophan; 45, sucrose; 46, trehalose; 47, raffinose; IS, internal standard (ribitol).