Evidence map›Paper›PMID 31390734›Full record

ArticleMolecules (Basel, Switzerland)2019

Theoretical Analysis of Efficiency of Multi-Layer Core-Shell Stationary Phases in the High Performance Liquid Chromatography of Large Biomolecules.

Szabolcs Horváth, Fabrice Gritti, Róbert Kormány, Krisztián Horváth

Abstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Szabolcs HorváthDepartment of Analytical Chemistry, University of Pannonia, Egyetem utca 10, H-8200 Veszprém, Hungary.
Fabrice GrittiWaters Corporation, 34 Maple Street, Milford, MA 01757, USA.
Róbert KormányDepartment of Analytical Chemistry, University of Pannonia, Egyetem utca 10, H-8200 Veszprém, Hungary.
Krisztián HorváthDepartment of Analytical Chemistry, University of Pannonia, Egyetem utca 10, H-8200 Veszprém, Hungary. raksi@almos.uni-pannon.hu.ORCID 0000-0003-4927-7919

Funding

Nemzeti Kutatási Fejlesztési és Innovációs Hivatal 128350
6 · The paper itself

Abstract

Modern analytical applications of liquid chromatography require columns with higher and higher efficiencies. In this work, the general rate model (GRM) of chromatography is used for the analysis of the efficiency of core-shell phases having two porous layers with different structures and/or surface chemistries. The solution of the GRM in the Laplace domain allows for the calculation of moments of elution curves (retention time and peak width), which are used for the analysis of the efficiency of bi-layer particles with and without a non-porous core. The results demonstrate that bi-layer structures can offer higher separation power than that of the two layers alone if the inner layer has smaller surface coverage (retentivity) and the pore size and pore diffusion of the outer layer is either equal to or higher than that of the inner layer. Even in the case of core-shell phases, there is an increase in resolution by applying the bi-layer structure; however, we can always find a mono-layer core-shell particle structure with a larger core size that provides better resolution. At the optimal core size, the resolution cannot be further improved by applying a bi-layer structure. However, in case of the most widely produced general-purpose core-shell particles, where the core is ∼70% of the particle diameter, a 15-20% gain of resolution can be obtained by using well-designed and optimized bi-layer core-shell phases.

Indexed as

Chromatography, High Pressure LiquidModels, TheoreticalAlgorithmsMacromolecular SubstancesParticle SizeMacromolecular Substanceschromatographic efficiencygeneral rate modelmoment analysismulti-layer core-shell particlesresolution

Identifiers

PMID31390734
PMCPMC6695945

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.