游离脂肪酸含量 Free Fatty Acid ; [有化] free fatty acid content ; FFA
游离氨基酸含量的测定 Determination of free amino acid
及游离脂肪酸含量 nonesterified fatty acid ; NEFA
目的检测胃炎灵胶囊对慢性萎缩性胃炎模型大鼠胃蛋白酶活性及胃液总酸和游离酸含量的影响。
ObjectiveTo study the effects of Weiyanling Capsuleon the activity of pepsinum in gastric tissue and the contents of acidum and free acid in gastric juice in rats with chronic atrophic gastritis.
采用弱碱溶解蜂胶再酸化萃取的方法纯化样品，用返滴法测定，以水杨酸作为对照品检测样品中游离酸含量。
Propolis was dissolved in alkalescent condition and filtered. The filtrate was acidified and extracted after a degrease step. The purified sample was finally determined by back-titration.
方法：采用氨基酸的游离氨基与水合茚三酮产生显色反应，在一定范围内，其颜色的深浅与氨基酸的含量成正比。
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.
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