场流分离理论的研究现状及发展趋势

Current Theory of Field-flow Fractionation and Its Development Trend

场流分离是一种方便快捷的分析分离技术,它具有设备简单,应用广泛,效率高等优点。该文介绍了场流分离原理及理论,描述了场流分离设备的主要结构,着重讲述了电场流分离、热场流分离、沉降场分离、流场流分离的方法及应用。比较了不同场流分离技术的差异,展望了场流分离发展的方向。引用文献44篇。

Field-flow fractionation （FFF） is a convenient shortcut for analysis and separation techniques,which possesses many excellences such as simple instrumentation, broad applications and unprecedented efficiency. This article introduces the principle of FFF as well as its correlative theory, expounds the main structure of the FFF apparatus, presents the methods of the electrical FFF, thermal FFF,sedimentation FFF and flow FFF, compares the differences of these suh-FFF, and forecasts the orientation of the development of FFF. 44 references are cited.