End effects in field-flow fractionation channels: theory and means for reducing incremental zone broadening.
End effects in field-flow fractionation channels: theory and means for reducing incremental zone broadening.
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场流分馏通道中的末端效应：减少增量区加宽的理论和方法。
DOI：
10.1021/ac00276a028
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发表时间：
1984
影响因子：
7.4
通讯作者：
Velez,GR
中科院分区：
文献类型：
--
作者：
Giddings,JC;Schure,MR;Myers,MN;Velez,GR
三角形端件用于转移载液和从矩形通道中使用的场流分馏检查相对于增量区加宽。本文提出了一个近似理论，说明了板高的增加是如何依赖于各种几何参数的.据预测，减少端件体积将降低板高，这是由实验证实。使用玻璃板柱的照片显示了由于端部和边缘效应引起的区域变形的性质，并证明了鞘流作为另一种解决不利端部效应的方法的可行性。结果表明，采用与端头到端头长度稍有不同的基于体积的通道长度，与准确测量和解释通道体积、滞留和塔板高度最为一致。滞留和区域分散场流分级（FFF）已研究多年，在理论和实验上取得了相当大的进展（1-4）。仔细的实验工作已经普遍证实了沉积FFF（5）、流动FFF（6）和热FFF（7）的滞留和区域分散理论。然而，
The triangular end pieces used to transfer carrier liquid to and from the rectangular channel used In field-flow fractionation are examined with respect to incremental zone broadening. An approximatetheory Is developed which shows how the Increased plate height depends on various geometrical parameters. It Is predicted that reducing the end-piece volume will reduce plate height; this Is confirmed by experiment. Photographs using glass plate columns show the nature of zone distortion due to end and edge effects and demonstrate the feasibility of sheath flow as another solution for adverse end effects. It Is shown that the use of a volume-based channel length, somewhat different from the tip-to-tip length, Is most consistent with the accurate measurement andIn-terpretation of channel volume, retention, and plate height.Retention and zone dispersion infield-flow fractionation (FFF) have been studied for a number of years with considerable progress in theory and experiment (1-4). Careful ex-perimental work has generally confirmed the theories of re-tention and zone dispersion for sedimentation FFF (5), flow FFF (6), and thermal FFF (7). However, the agreement of
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DOI：
--
发表时间：
1976
期刊：
影响因子：
--
作者：
J. Giddings;Frank J. Yang;M. N. Myers
通讯作者：
M. N. Myers
DOI：
--
发表时间：
1980
期刊：
影响因子：
--
作者：
J. J. Kirkland;W. Yau;W. A. Doerner;J. W. Grant
通讯作者：
J. W. Grant
影响因子：
7.4
作者：
J. Giddings;K. Caldwell;J. F. Moellmer;T. H. Dickinson;M. N. Myers;Michel Martin
通讯作者：
Michel Martin
影响因子：
7.4
作者：
LaRell K. Smith;M. N. Myers;J. Giddings
通讯作者：
J. Giddings
沉降场流分级中保留和区域扩散方程的验证
影响因子：
7.4
作者：
G. Karaiskakis;M. N. Myers;K. Caldwell;J. Giddings
通讯作者：
J. Giddings