2015 Volume 56 Issue 1 Pages 8-13
A method using liquid chromatography coupled with mass spectrometry (LC-MS) was developed for the simultaneous determination of colorants in foods. Twenty-five colorants were extracted from foods with water or methanol and ammonia water, and cleaned up with a solid-phase extraction column. Recovery rates were between 71 and 113%, and relative standard deviations were less than 10%. The detection limits of the colorants were 0.2–0.8 μg/g. The analytical method using LC-MS established in this study is suitable for the detection of colorants in processed foods.