摘要
利用氨基酸分析仪测定乳饮料及乳制品中游离甘氨酸含量。研究了样品前处理方法和仪器色谱分离条件对乳饮料及乳制品中甘氨酸测定的影响。该方法具有较好的重现性,加标回收率为96.4%～100.6%,方法精密度为0.99%,标准曲线线性相关系数为0.999 9,20μL进样最低检出限为1.0 pmol。
The amino acid analysis direct system was used to test the free-glycin in the milk drinks and the dairy products, and the methods for sample pretreatment and chromatographic parameters were studied. The test results were to analysis whether the milk drinks and the dairy products had free-glycine. The method ,has convenient, accurate and practical, the recovery rate was 96.4 ~ ~100.6 % ,RSD was 0.99 %, the relative modulus was 0. 9999, the minimum amount that can be detected was 1.0 pmol in 20μL injection.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2009年第2期159-161,共3页
Food and Fermentation Industries
