2014
DOI: 10.1016/j.chroma.2014.09.010
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Comparison of superficially porous and fully porous silica supports used for a cyclofructan 6 hydrophilic interaction liquid chromatographic stationary phase

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Cited by 49 publications
(28 citation statements)
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“…SPPs are thought to have rougher surfaces than FPPs and are typically more well packed than the FPPs (SPP reduced plate heights (h) ≈ 1.3–1.5 and FPP h >2.0) . Lastly, the nonporous core‐to‐particle ratio (ρ) can be varied, leading to optimum transparticle path lengths, which may reduce mass transfer contributions for slow diffusing and/or slow adsorbing‐desorbing molecules . This is of the utmost importance when high linear velocities are used …”
mentioning
confidence: 99%
“…SPPs are thought to have rougher surfaces than FPPs and are typically more well packed than the FPPs (SPP reduced plate heights (h) ≈ 1.3–1.5 and FPP h >2.0) . Lastly, the nonporous core‐to‐particle ratio (ρ) can be varied, leading to optimum transparticle path lengths, which may reduce mass transfer contributions for slow diffusing and/or slow adsorbing‐desorbing molecules . This is of the utmost importance when high linear velocities are used …”
mentioning
confidence: 99%
“…33 The lower efficiencies observed at higher ow rates have been explained by the complex mechanism of the HILIC separation mode and the associated mobile phase compositions. 36 The water layer adsorbed at the surface of the stationary phase, combined with the adsorption and/or electrostatic interaction of analytes with the stationary phase, result in decreased diffusivity and greater resistance to the mass transfer, which in turn adversely affect the separation efficiencies. 27,28,37 It must be pointed out that we obtained the same results with the XBridge column packed with FPPs (data not shown), indicating that the decrease in efficiency with the increasing mobile phase ow rate can be assigned to the features of the HILIC mechanism rather than to the particle technology and the support material.…”
Section: Lanthanide Polyaminocarboxylic Species Separation Using Amidmentioning
confidence: 99%
“…In consideration of column support technology, superficially porous technology provides enhanced selectivity, higher number of theoretical plates and also is able to withstand higher pressure and flow rates when compared to classical fully porous silica [17]. Higher flow rates help in reducing the run time and superficially porous stationary phase allows greater flow rates at relatively low back pressure.…”
Section: Selection Of Columnmentioning
confidence: 99%