摘要
样品经l%三氯乙酸提取,离子交换色谱柱分离,二极管阵列检测器进行检测。实验结果表明,三聚氰胺在(0.1～10.0)μg/mL时,线性关系良好(r>0.999),在(2.5～250)mg/kg的添加水平范围内的平均回收率为98.9%～104.3%,相对标准偏差(RSD)为0.4%～4.8%,方法的检出限为1.0 mg/kg。方法简单、准确,适合食品中三聚氰胺的检测。
Samples are extracted using 1.0 % trichloroacetic acid,separated on a ion exchange chromatography column,detected with diode array detector.The results showed good linear relationship（r0.999） for melamine at the range of（0.1～10.0）μg/mL,the detection limit is 1.0 mg/kg,the recoveries are 98.9%～104.3% at the range of（2.5~250）mg/kg and the relative standard deviations（RSDs） are 0.4%～4.8%,the detection limit of the method is 1.0mg/kg.The method is simple,and accurate for determination of melamine in foods.
出处
《食品工业》
北大核心
2011年第5期98-100,共3页
The Food Industry
关键词
离子交换色谱
三聚氰胺
食品
ion exchange chromatograph
melamine
foods
