采用直接酯化法，将山梨酸与四种醇反应，合成了山梨酸甲酯、乙酯、丙酯、丁酯。
Methyl, ethyl, propyl and butyl sorbates were synthesized by esterification of sorbic acid with four kinds of alcohol respectively.
用核磁共振波谱、质谱和红外光谱表征了非离子表面活性剂中山梨醇酐脂肪酸酯和聚氧乙烯山梨醇酐脂肪酸酯的结构特征和它们的组成。
The characteristics of structures and composition for sorption carboxylic esters and polyoxyethylene sorbitan carboxylic esters of typical non _ ionic surfactants are indicated by NMR, MS and IR.
目的：测定复合氨基酸注射液中山梨醇的含量。
Objective: to assay the sorbitol of Compound Amino Acid Injection.
为了解决这个限制，一个低分子量增塑剂如甘油数量，山梨醇，柠檬酸三乙酯使用。
To remedy this limitation, a number of low molecular weight plasticisers such as glycerol, sorbitol and triethyl citrate are used.
纯净水，植物甘油，果糖，山梨醇，接骨木粉(颜色和味道)柠檬酸，天然香料，苯甲酸钠。
Purified Water, Vegetable Glycerin, Fructose, Sorbitol, Elderberry Powder (color and flavor) Citric Acid, Natural Flavors, Sodium Benzoate.
对于所述表面活性剂，最适合的是非离子表面活性剂，并且可以使用脂肪酸酯，例如甘油脂肪酸酯、脱水山梨糖醇脂肪酸酯和蔗糖脂肪酸酯。
For the surfactants, non-ionic surfactants are most suitable, and fatty acid esters such as glycerine fatty acid esters, sorbitan fatty acid esters and sucrose fatty acid esters may be used.
为脂肪酸（它是构成脂肪的）的一和二甘油酯及一油酸山梨糖醇酯。
The emulsifiers in all examples are mono-and diglycerides of fat-forming fatty acids or soubitan monooleate.
为脂肪酸（它是构成脂肪的）的一和二甘油酯及一油酸山梨糖醇酯。
The emulsifiers in all examples are mono-and diglycerides of fat-forming fatty acids or soubitan monooleate.
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