title: Systematic optimisation of high-performance liquid chromatographic separation by varying the temperature, gradient, and stationary phase.
abstract: Optimisation of the separation of a synthetic drug mixture by HPLC is performed by changing both continuous variables, i.e. mobile phase composition and temperature, and categorical variables, here the stationary phase. The retention of solutes is described on the basis of a general linear model in which the different columns are modelled by indicator variables. From the solute-specific retention models the global separation optimum is evaluated on the basis of multidimensional window diagrams using relative retentions of all peak pairs as the figure-of-merit.
authors.affiliation: Institute of Analytical Chemistry, Freiberg University of Mining and Technology, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Otto
authors.forename: Anke
authors.initials: A
authors.lastname: Schirmer
authors.forename: Ute
authors.initials: U
authors.lastname: Claussnitzer
authors.forename: Michael
authors.initials: M
authors.lastname: Pfeffer
mesh_terms: D000736:Androstenes / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid / Q000379:methods / Q000592:standards; D004340:Drug Contamination; D008956:Models, Chemical; D004364:Pharmaceutical Preparations / Q000302:isolation & purification*; D013696:Temperature
chemical_list: D000736:Androstenes; D004364:Pharmaceutical Preparations; C035144:drospirenone