中文摘要：

碳纳米管具有高的比表面积，良好的化学性能，机械性能和热稳定性，因而被用作固相萃取的吸附剂吸附金属离子。综述了碳纳米管作为固相萃取材料富集金属离子的研究成果，介绍碳纳米管的结构特性，重点分析其作为固相萃取填料在金属离子吸附方面的机理及应用，展望了碳纳米管在固相萃取技术中的发展趋势。

英文摘要：

Carbon nanotubes （CNT） have been applied as adsorbent of solid-phase extraction （SPE） for preconcentration metal ions, because of the CNT＇s high surface area, excellent chemical, mechanical, thermal stability. In this paper, the achievements in study of using CNT as adsorbent of SPE for metal ions were summarized. The structure and characteristics of CNT were introduced in detail. The mechanism and application of CNT adsorption for metal ions were described with emphasis. The application potential of CNT as excellent adsorbent of SPE for metal ions was prospected.