期刊
FOOD CHEMISTRY
卷 129, 期 4, 页码 1898-1903出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2011.05.140
关键词
Edible oils; Olive oil; Mineral oil saturated hydrocarbons (MOSH); SPE; GC-FID
An optimised off-line SPE-GC-FID method based on the use of silver-silica gel was developed for the determination of mineral oil saturated hydrocarbons (MUSH) in vegetable oils, including olive pomace oil. The method is specific in not including the aromatic hydrocarbons. The performance of different silica gels (untreated, activated and treated with silver nitrate) was compared in terms of capacity to retain fat and retention of interfering olefins present in particularly large amounts in refined olive oils. A coefficient of variation of 9% was obtained performing six replicate analyses of an extra virgin olive oil fortified with an amount of MOSH near the estimated LOQ (15 mg/kg). Recoveries were close to 100%. The use of activated aluminium oxide as an additional tool to eliminate interference by endogenous long-chain n-alkanes, is discussed. (C) 2011 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据