摘要
目的：了解GC／MS测定食品中苏丹Ⅰ的效果。方法：样品被正己烷提取后，经中性氧化铝柱净化，用正己烷洗去油脂，再用二氯甲烷洗脱柱上吸附的苏丹Ⅰ，经浓缩，以HP-5MS（30m×250／μm；i，d；0．25μm）分离，气相色谱-质谱（GC/MS）测定。以碎片离子方式（SIM）定性或定量。结果：苏丹Ⅱ不干扰测定。方法回收率为88．0％～94．0％。相对标准偏差（RSD）为1．13％。结论：该方法与经HPLC测定后的样品进行比对，测定了27件含苏丹Ⅰ的样品（阳性样）和近百件不含苏丹Ⅰ的样品（阴性样），结果准确、灵敏。
Objective： To understand the effect of GC/MS on sudan dye Ⅰ detection. Method： Sudan dye Ⅰ in foods was separated and determined. The samples were extracted with hexane and passed the column with Al2O3. Capillary column of lip - 5MStype （30 m×250 μm; i, d; 0.25 μm） wasused as stationary phase. Result： The abstained RSD＇S of this method was 1.13% and recoveries was 88%-94%.The detection limitation achieved to 2.3×10^-10g.Conelusion：It is a sensitive and accurant method.
出处
《现代预防医学》
CAS
北大核心
2006年第7期1213-1215,共3页
Modern Preventive Medicine
关键词
GC/MS测定
苏丹Ⅰ
食品
辣椒粉
gas chromatography
mass spectrometry （GC/MS）
Determination
sudan dye Ⅰ food
