期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 59, 期 13, 页码 7519-7526出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf2013919
关键词
N-Nitrosamines; aromatic amines; melamine; milk; dairy products; continuous solid-phase extraction; gas chromatography-mass spectrometry
资金
- DGI of the Spanish Ministry of Science and Innovation [CTQ2010-17008]
- Agencia Espanola de Cooperacion Internacional y Desarrollo (AECID) [D/023/85/09]
- FEDER
A reliable analytical method was presented for the simultaneous determination of six N-nitrosamines, nine aromatic amines, and melamine in milk and dairy products using gas chromatography coupled with mass spectrometry. The sample treatment includes the precipitation of proteins with acetonitrile, centrifugation, solvent changeover by evaporation, and continuous solid-phase extraction for cleanup and preconcentration purposes. Samples (5 g) containing 0.15-500 ng of each amine were analyzed, and low detection limits (15-130 ng/kg) were achieved. Recoveries for milk and dairy products samples spiked with 1, 10, and 50 mu g/kg ranged from 92% to 101%, with intraday and interday relative standard deviation values below 7.5%. The method was successfully applied to determine amine residues in several milk types (human breast, cow, and goat) and dairy products.
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