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人参水提取物，经离心、透析，将透析外液浓缩后上Ｂｉｏ—ｇｅｌ柱，得到活性组分Ａ，经薄层１Ｈ—ＮＭＲ及（１３）Ｃ—ＮＭＲ鉴定，该化合物为精氨酸，并应用日立—８３５型氨基酸自动分析仪检测了人参、西洋参、三七中精氨酸含量，其中精氨酸含量以西洋参最高，该物质为滋补强壮的物质基础之一。
The ginseng water extract is centrifuged and dialyzed, and the dialysate is concentrated on a Bio-gel column to obtain an active component A. The compound is arginine after identification by thin layer 1H-NMR and (13) C-NMR. The arginine content in ginseng, American ginseng and Panax notoginseng was measured by Hitachi-835 amino acid automatic analyzer. The content of arginine was the highest in the American ginseng and it was one of the material bases for nourishing and strengthening.