应用化学2011，Vol.28Issue(4)：448-453,6.DOI:10.3724/SP.J.1095.2011.00395
磺化改性聚四氟乙烯纤维固相萃取-高效液相色谱联用测定奶制品中的三聚氰胺
Sulfonation Modification of the Polytetrafluoroethene Fiber for Solid Extraction Coupled with High-performance Liquid Chromatography for Determination of Trace Melamine in Milk Preparations
张毅 1韩晓燕 2赵培莉 1郭炜毅 2张政朴3
作者信息
- 1. 天津中医药大学实验教学部,天津
- 2. 天津中医药大学中药学院,天津市中药化学与分析重点实验室,天津300193
- 3. 南开大学高分子所,功能高分子材料教育部重点实验室,天津
- 折叠
摘要
Abstract
A preconcentration column packed with home-made sulfonated glycidyl methacrylate ( GMA) -grafted-polytetrafluoroethylene( PTFE) polymer( PTFE-g-GMA-SO3 H) fiber, coupled with high-performance liquid chromatography ( HPLC) and flow injection, fiber was developed for trace melamine determination in the samples. The on-line determination method using the fiber as adsorbent for trace melamine in two milk sample was demonstrated. The conditions for preconcentration and elution of melamine were optimized. In addition, analytical performance of trace melamine determination was acquired in this article. The enrichment factor for melamine was 300 and the detection limits was 1. 13 × 10 -2 mg/L. The relative standard derivation was 7. 6％ (n = 9) when the melamine concentration was 0.2 mg/L, and the recovery of samples was 98％ and 102. 5％ , respectively.关键词
磺化的接枝甲基丙烯酸缩水甘油酯的聚四氟乙烯纤维/在线固相萃取/三聚氰胺Key words
sulfonated glycidylmethacrylate grafted polytetrafluoroethylene, on line solid extraction, melamine分类
化学化工引用本文复制引用
张毅,韩晓燕,赵培莉,郭炜毅,张政朴..磺化改性聚四氟乙烯纤维固相萃取-高效液相色谱联用测定奶制品中的三聚氰胺[J].应用化学,2011,28(4):448-453,6.
