分析化学2011，Vol.39Issue(9)：1418-1422,5.DOI:10.3724/SP.J.1096.2011.01418
胶束毛细管电动色谱法在线富集联用技术灵敏检测乳制品和饲料样品中的三聚氰胺
On-line Preconcentration and Sensitive Determination of Melamine in Milk Powder and Animal Feeds Samples by Micellar Electrokinetic Chromatography
摘要
Abstract
A sensitive analytical method using micellar electrokinetic chromatography with on-line pre-concentration technique was developed for rapid determination of melamine in various samples. Two online preconcentration techniques including field-amplified sample stacking and sweeping micellar electrokinetic chromatographic technique (FASS- sweep MEKC) were used. The samples were extracted by acetonitrile for three times. Under the optimum conditions, the sensitivity was improved about 1000 times. The LODs was decreased from 2. 0 mg/L to 1. 8 μg/L. The RSD were less than 4. 5%. The recoveries were range in 97. 2% -105%. This method is sensitive, reliable, economic and . pretreatment-free for complex samples' and can be easily used for product quality control of milk powder and animal feeds.关键词
胶束毛细管电动色谱/场放大进样/扫集/三聚氰胺Key words
Micellar electrokinetic chromatography/ Field-amplified sample stacking/ Sweeping/ Melamine引用本文复制引用
陈新,袁红萍,曹玉华,陈秋..胶束毛细管电动色谱法在线富集联用技术灵敏检测乳制品和饲料样品中的三聚氰胺[J].分析化学,2011,39(9):1418-1422,5.基金项目
本文系国家自然科学基金(No.20775028)和江南大学青年基金(No.20070337)资助项目 （No.20775028）
