Methods: color reaction of free amino acids with ninhydrin was adopted, since, in certain extent, the color depth is correlated with the amino acid content.
2
对改性产品以茚三酮法进行分析，对铬鞣革屑水解产物及其改性产品进行IR分析和氨基酸分析。
To provide proof of grafting, modified hydrolysate was identified by indanthrone, the IR and amino acid composition analysis of hydrolysate and modified hydrolysate were studied.
3
氨基酸层析分析时，将显色剂茚三酮直接溶于展开剂中。
Developer was combined with spray reagent in amino acid chromatography analysis.
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