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) to predict retention, building on an approach for the optimization of the peak capacity of large molecules (peptides) in fixed column format separations.
authors.affiliation: Department of Chemistry, University of Minnesota, Smith Hall, 207 Pleasant Street SE, Minneapolis, MN 55455, USA.
authors.forename: Arianne
authors.initials: A
authors.lastname: Soliven
authors.forename: Imad A
authors.initials: IA
authors.lastname: Haidar Ahmad
authors.forename: Marcelo R
authors.initials: MR
authors.lastname: Filgueira
authors.forename: Peter W
authors.initials: PW
authors.lastname: Carr
mesh_terms: D056148:Chromatography, Reverse-Phase / Q000379:methods*; D057927:Hydrophobic and Hydrophilic Interactions; D007211:Indoles / Q000737:chemistry / Q000302:isolation & purification; D008956:Models, Chemical; D008970:Molecular Weight; D010936:Plant Extracts / Q000737:chemistry; D012639:Seeds / Q000737:chemistry; D012997:Solvents; D013696:Temperature; D003313:Zea mays / Q000737:chemistry
chemical_list: D007211:Indoles; D010936:Plant Extracts; D012997:Solvents