【摘要】 本文报导一种分析食品中草酸含量的方法。该方法是将固体食品样经过用水提取,用7％HCl—CH₃OH甲酯化之后,以气相色谱法测定草酸二甲酯的含量。该方法简单,准确,且样品用量少。更多还原

【Abstract】 A gas—chromatographic method is described for determination of oxalic acid in food. Solid sample is extracted with water. Extracted sample is evaporated to dryness and methylated with 7％ hydrochloric acid—methanol. Reaction mixture is extracted with chloroform, and dimethyl oxalate is quantitated by GC. The method is simple and accurate with only a little sample used.更多还原