2008
DOI: 10.1016/j.chroma.2008.04.004
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Structural radial heterogeneity of a silica-based wide-bore monolithic column

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Cited by 54 publications
(25 citation statements)
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References 23 publications
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“…Trans-column eddies were always suspected as be a source of band broadening in packed columns, as already observed in packed columns [15][16][17][18] and more recently in monolithic columns. [19][20][21] Still, this observation does not explain why the A-term is significantly higher when access to the mesopore volume is blocked. A new model of eddy dispersion is needed.…”
Section: Introductionmentioning
confidence: 52%
See 2 more Smart Citations
“…Trans-column eddies were always suspected as be a source of band broadening in packed columns, as already observed in packed columns [15][16][17][18] and more recently in monolithic columns. [19][20][21] Still, this observation does not explain why the A-term is significantly higher when access to the mesopore volume is blocked. A new model of eddy dispersion is needed.…”
Section: Introductionmentioning
confidence: 52%
“…18,21,43,44 In good packed columns, the linear velocity is slightly higher in the center than at the column wall ($3-7%). In monolithic columns, the opposite is true.…”
Section: Transcolumn Eddy Dispersionmentioning
confidence: 97%
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“…Guiochon et al found heterogeneity in the network structure from the center to the wall region on first generation Chromolith by placing a detection point at different radial positions 109 . Tallarek et al.…”
Section: Improvements Proposed Based On the Characterization Of Firstmentioning
confidence: 99%
“…In order to achieve high column efficiency, it is essential that the mobile phase percolates through the bed following piston flow, so that the radial distribution of the mobile phase velocity is flat [36]. Guiochon demonstrated that a wide-bore silica monolithic column had a radially heterogeneous structure surrounding a nearly homogeneous core at the column center [109].…”
Section: Introductionmentioning
confidence: 99%