摘要
以臭豆腐油炸油为试材,建立基于电导率的油炸油极性物质检测方法。结果表明,去离子水加入量为25 mL,正己烷加入量为20 mL,超声振荡时间为7 min时为最佳检测条件。在此条件下,萃取水相电导率随极性物质含量增加而增大,相关性较好,决定系数R2为0.995。因此,用去离子水与油炸油振荡混合后测定其电导率可作为油炸油极性物质含量检测方法。
The conductivity for the detection of polar compounds in the frying oil was established. Results indicated that the optimum conditions are as follows：deionized water of 25 mL, hexane amount of 20 mL and ultrasonic oscillation time of 7 min. Under this condition the conductivity of water phase is increased with the increasing content of polar substance, the assay has a good correlation and the coefficient of determination is high up to 0. 995. Therefore, the method could be used to detect the polar compounds in fried oils.
出处
《应用化工》
CAS
CSCD
2013年第4期751-753,共3页
Applied Chemical Industry
关键词
炸油
极性物质
检测
frying oil
polar compounds
detection
