Additional file 2 of A compound-specific method for measuring the stable carbon isotopic composition of amino acids: elimination of the effect of isotopic fractionation during derivatization

Additional file2 Supplementary Table 1. The δ13C values of derivatives, isopropyl group, pivaloyl group, and amino acids for the reference materials. Supplementary Table 2. The δ15N values of derivatives, isopropyl group, pivaloyl group, and amino acids for the reference materials. Supplementary Table 3. The δ13C and δ15N of amino acids in wild species (sea slug and sponge)

附加文件2 补充表1：参考物质 (reference materials) 的衍生物 (derivatives)、异丙基 (isopropyl group)、新戊酰基 (pivaloyl group) 及氨基酸 (amino acids) 的碳同位素比值δ¹³C (δ13C) 值。补充表2：参考物质的衍生物、异丙基、新戊酰基及氨基酸的氮同位素比值δ¹⁵N (δ15N) 值。补充表3：野生物种 (wild species，海蛞蝓 (sea slug) 与海绵 (sponge)) 体内氨基酸的碳同位素比值δ¹³C与氮同位素比值δ¹⁵N。