摘要
以国标法(GB/T5009.28-1996食品中糖精钠的测定方法,GB/T5009.29-1996食品中苯甲酸和山梨酸的测定方法)为基础,通过大量分析对比高速离心法对样品净化在实践中应用的可行性。实验证明,此法可以比常规检验中使用的膜过滤的方法省时,更可以节约试验费用。
On the basis of the National Standards GB/T5009.28 - 1996 “The Determination of Sodium Saccharin in Food”and GB/T5009.29 - 1996“The Determination of Benzoic Acid and Sorbic Acid in Food”,the practical feasibility of high-speed centrifugation in the purification of samples was investigated through a lot of analyses and comparisons. The results showed that the method has the advantages of saving time and cutting down experimental cost over membrane filtration used in conventional determinations.
出处
《饮料工业》
2007年第7期40-42,共3页
Beverage Industry
关键词
防腐剂和甜味剂
高速离心法
膜过滤法
preservative and sweetener
high-speed centrifugation
membrane filtration
