Cyclical electrical field flow fractionation
Cyclical electrical field flow fractionation
复制标题
循环电场流分级
DOI：
10.1002/elps.200410296
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发表时间：
2005
期刊：
影响因子：
2.9
通讯作者：
M. Srinivas
中科院分区：
文献类型：
--
作者：
B. Gale;M. Srinivas
首次在标准电场流分级（ElFFF）通道中演示了循环电场流分级（Cy/ElFFF）。在传统的直流（DC）技术中使用交流（AC）场的动机进行了讨论。系统在广泛的操作条件下的功能进行了探讨，并报告了与各种操作条件相关的挑战。保留聚苯乙烯纳米粒子的标准完成和不同的参数的应用领域，如电压和频率的影响，进行了探讨。使用这种技术的第一个分离证明。实验结果进行了比较，以前在文献中报道的分析模型。实验结果的总体趋势是相似的理论模型和可能的原因的差异进行了阐述。提出了改进分离分析方法的建议，并探讨了可能的应用前景.
Cyclical electrical field flow fractionation (Cy/ElFFF) is demonstrated in a standard electrical field flow fractionation (ElFFF) channel for the first time. Motivation for the use of alternating current (AC) fields in a traditionally direct current (DC) technique are discussed. The function of the system over a wide range of operating conditions is explored and challenges associated with various operating conditions reported. Retention of polystyrene nanoparticle standards is accomplished and the effect of varying parameters of the applied field, such as voltage and frequency, are explored. The first separations using this technique are demonstrated. The experimental results are compared to analytical models previously reported in the literature. The general trend of the experimental results is similar to those predicted in theoretical models and possible reasons for discrepancies are elucidated. Suggestions are made for improving the separation and analysis method, and possible applications explored.