直接滴定法测定鱼油中酸价的研究

作     者：翟毓秀 尚德荣 

作者机构：中国水产科学研究院黄海水产研究所国家水产品质量监督检验中心青岛266071 

出 版 物：《海洋科学》 (Marine Sciences)

年 卷 期：1997年第21卷第5期

页      面：65-67页

核心收录：

学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 08[工学] 083204[工学-水产品加工及贮藏工程] 

主　　题：滴定法 鱼油 酸价 氢氧化钾 

摘      要：The method of determination acid value was studied using titration directly in fish oil through drawing up the standard of fish oil from September 1993 to May 1994. The optimum condition and steps were been determined. The question that the titration destination changed slowly and the turbid solution appeared in the period of detecting was solved through using thymolsulfonphthalein that instead of phenolphthalein to indicator and 0.5 mol/L Potassium hydroxide solution to titrant and the mixture that was been mixed by ether and anhydrous ethanol mixed to the solvent. Therefore, the values detected is accurate and reliable.