Optimization of gradient reversed phase chromatographic peak capacity for low molecular weight solutes

Arianne Soliven; Imad A. Haidar Ahmad; Marcelo R. Filgueira; Peter W. Carr

doi:10.1016/j.chroma.2012.11.068

Optimization of gradient reversed phase chromatographic peak capacity for low molecular weight solutes

Arianne Soliven, Imad A. Haidar Ahmad, Marcelo R. Filgueira, Peter W. Carr

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

A general protocol for optimizing peak capacity for the separation of low molecular weight molecules under gradient elution conditions has not yet been developed. By studying the effects of gradient time, flow rate, temperature, final eluent composition, and column length on peak capacity, a protocol has been developed for the optimization of a separation of small molecules such as those seen in metabolomic studies. The strategy developed employs the Linear-Solvent-Strength Theory (LSS Theory) [1] to predict retention, building on an approach for the optimization of the peak capacity of large molecules (peptides) in fixed column format separations [2].

Original language	English (US)
Pages (from-to)	57-65
Number of pages	9
Journal	Journal of Chromatography A
Volume	1273
DOIs	https://doi.org/10.1016/j.chroma.2012.11.068
State	Published - Jan 18 2013

Bibliographical note

Funding Information:
The insightful discussions with Dr. Xiaoli Wang of Agilent Technolgies are gratefully acknowledged. We thank Prof. W.E Noland of the University of Minnesota and his research group for the generous gift of the hydrophobic indoles. The authors would also acknowledge financial support from National Institutes of Health ( 5R01GM54585-15 ) and Agilent Technologies for the donation of the Zorbax SB-C3 columns and Medtronix Inc. for donation of the LC equipment.

Keywords

Gradient elution
Linear-Solvent-Strength Theory
Method development
Optimization
Peak capacity
Reversed phase

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title = "Optimization of gradient reversed phase chromatographic peak capacity for low molecular weight solutes",

abstract = "A general protocol for optimizing peak capacity for the separation of low molecular weight molecules under gradient elution conditions has not yet been developed. By studying the effects of gradient time, flow rate, temperature, final eluent composition, and column length on peak capacity, a protocol has been developed for the optimization of a separation of small molecules such as those seen in metabolomic studies. The strategy developed employs the Linear-Solvent-Strength Theory (LSS Theory) [1] to predict retention, building on an approach for the optimization of the peak capacity of large molecules (peptides) in fixed column format separations [2].",

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note = "Funding Information: The insightful discussions with Dr. Xiaoli Wang of Agilent Technolgies are gratefully acknowledged. We thank Prof. W.E Noland of the University of Minnesota and his research group for the generous gift of the hydrophobic indoles. The authors would also acknowledge financial support from National Institutes of Health ( 5R01GM54585-15 ) and Agilent Technologies for the donation of the Zorbax SB-C3 columns and Medtronix Inc. for donation of the LC equipment.",

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AU - Filgueira, Marcelo R.

AU - Carr, Peter W.

N1 - Funding Information: The insightful discussions with Dr. Xiaoli Wang of Agilent Technolgies are gratefully acknowledged. We thank Prof. W.E Noland of the University of Minnesota and his research group for the generous gift of the hydrophobic indoles. The authors would also acknowledge financial support from National Institutes of Health ( 5R01GM54585-15 ) and Agilent Technologies for the donation of the Zorbax SB-C3 columns and Medtronix Inc. for donation of the LC equipment.

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KW - Linear-Solvent-Strength Theory

KW - Method development

KW - Optimization

KW - Peak capacity

KW - Reversed phase

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Optimization of gradient reversed phase chromatographic peak capacity for low molecular weight solutes

Abstract

Bibliographical note

Keywords

Access

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