标准摘要
[中文适用范围]： 给出了两种电位滴定法测定含有羰基化合物的精油的羰基值。 方法1基于与羟酰氯化铵的冷肟化反应，香茅醛除外，其需要低温以避免环化现象和乙酰化。 方法2基于与氯化羟铵的热肟化反应，适用于主要成分为酮的精油，而酮通常难以肟化。 [外文原描述]： Gives two methods for the potentiometric determination of the carbonyl value of essential oils which contain carbonyl compounds. Method 1 is based on a cold oximation reaction with hydrxoylammonium chloride with exception of citronellal which need a low temperature to avoid cyclization phenomena and acetylization. Method 2 is based on a hot oximation reaction with hydroxylammonium chloride and applies to essential oils whose main constituents are ketones which are general oximable only with difficulty.
英文名称Essential oils — Determination of carbonyl value — Potentiometric methods using hydroxylammonium chloride