摘要
报道了一种检测油脂中的合成抗氧剂(BHT、BHA、TBHQ和PG)MLC方法,含有抗氧剂的油脂按1∶4(Voil:V2-propanol)被稀释、过滤,并且在没有前期萃取的情况下直接注射进样分析。研究了抗氧剂的MLC方法的检测条件。当C18色谱柱、胶束流动相中含0.08MSDS,5%(V/V)异丙醇和0.01mol/LNaH2PO4.H2O,胶束流动相的pH为3～4,检测波长为280nm,流速1ml/min时,在1～15μg/g的范围内标准曲线呈线性关系(r>0.9992),4种抗氧剂的检测限为0.1～0.4μg/g。方法回收率为89.1%～99.9%。
A simple and rapid MLC method for the determination of synthetic antioxidants (butylated hydroxytoluene、butylated hydroxyanisole、tert-butylhydroquinone and propyl gallate) in oil or fat is reported. In this method,the oil or fat which contain the antioxidants is diluted in 2-propanol with the ratio of 1:4 (Voil:V2-propanol),filtered and directly injected without previous extraction. The determination conditions of the MLC for the antioxidants has been studied,and the conditions are as follows:the analytes w...
出处
《分析试验室》
CAS
CSCD
北大核心
2010年第7期72-74,共3页
Chinese Journal of Analysis Laboratory
关键词
高效液相色谱
胶束
抗氧剂
High performance liquid chromatography
Mmicellar
Antioxidant
