摘要
目的:对样品前处理条件和仪器分析条件进行优化研究,建立食品中富马酸二甲酯残留的气相色谱检测方法。方法:采用匀浆提取,中性氧化铝净化,毛细管柱气相色谱-火焰离子化检测器检测,并对检测中的阳性样品,用GC-MS方法进行确证实验。结果:该方法在1μg/m l^100μg/m l范围内线性关系良好,相关系数为0.9999,加标回收率为90.8%~99.8%,最低检测限为2 mg/kg。结论:该方法准确可靠,操作简便,在食品样品检测中具有实际应用意义。
Objective：To study and develop the method of sample pre-treatment and determination of dimethyl fumarate residues in foods by GC-FID.Methods：Homogenate extraction and neutral alumina purification were used in sample pre-treatment.Dimethyl fumarate in foods was determined by GC-FID and also GC-MS method was developed and performed to validate the positive samples.Results：Dimethyl fumarate showed a good linear relationship in a range of 1 μg/ml^100 μg/ml,the correlation coeficients was 0.9999,the recovery rate was 90.8%~99.8% and the detection limit of this method was 2 mg/kg.Conclusion：The results of this method are accurate and reliable and operation is simple and quick.The method can be absolutely applied in the determination of dimethyl fumarate residues in foods.
出处
《中国卫生检验杂志》
CAS
2011年第2期327-328,共2页
Chinese Journal of Health Laboratory Technology
