Objective To study the effect of pretreatment method on detection of butylated hydroxytoluene (BHT) in food plastic packaging materials. Methods Samples were extracted with hexane under ultrasound -assisted extraction, stored for 2 d under ?10 ℃, and analyzed by GC-MS after centrifugation and concentration. Results Total ion chromatograms of BHT GC-MS peak shaped clean and impurity peak was significantly reduced. Conclusion The pre-treatment method could significantly improve the separation efficiency.
标题:前处理方法对食品包装2,6二叔丁基苯酚 检测的影响
英文标题:Effect of pretreatment method on detection of butylated hydroxytoluene in food plastic packaging materials