Optimisation of HPLC gradient separations using artificial neural networks (ANNs): Application to benzodiazepines in post-mortem samples

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dc.contributor.author Webb, Rebecca en_US
dc.contributor.author Doble, Philip en_US
dc.contributor.author Dawson, Michael en_US
dc.contributor.editor en_US
dc.date.accessioned 2010-05-28T09:56:20Z
dc.date.available 2010-05-28T09:56:20Z
dc.date.issued 2009 en_US
dc.identifier 2008007876 en_US
dc.identifier.citation Webb Rebecca, Doble Philip, and Dawson Michael 2009, 'Optimisation of HPLC gradient separations using artificial neural networks (ANNs): Application to benzodiazepines in post-mortem samples', Elsevier Science Bv, vol. 877, no. 7, pp. 615-620. en_US
dc.identifier.issn 1570-0232 en_US
dc.identifier.other C1 en_US
dc.identifier.uri http://hdl.handle.net/10453/10432
dc.description.abstract Artificial neural networks (ANNs) were used in conjunction with an experimental design to optimise a gradient HPLC separation of nine benzodiazepines. Using the best performing ANN, the optimum conditions predicted were 25 mM formate buffer (pH 2.8), 10% MeOH, acetonitrile (ACN) gradient 0-15 min, 6.5-48.5%. The error associated with the prediction of retention times and peak widths under these conditions was less than 5% for six of the nine analytes. The optimised method, with limits of detection (LODs) in the range of 0.0057-0.023 mu g/mL and recoveries between 58% and 92%, was successfully applied to authentic post-mortem samples. This method represents a more flexible and convenient means for optimising gradient elution separations using ANNs than has been previously reported. en_US
dc.language en_US
dc.publisher Elsevier Science Bv en_US
dc.relation.isbasedon http://dx.doi.org/10.1016/j.jchromb.2009.01.012 en_US
dc.title Optimisation of HPLC gradient separations using artificial neural networks (ANNs): Application to benzodiazepines in post-mortem samples en_US
dc.parent Journal Of Chromatography B-Analytical Technologi... en_US
dc.journal.volume 877 en_US
dc.journal.number 7 en_US
dc.publocation Amsterdam en_US
dc.identifier.startpage 615 en_US
dc.identifier.endpage 620 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 039900 en_US
dc.personcode 97086589 en_US
dc.personcode 010494 en_US
dc.personcode 910324 en_US
dc.percentage 100 en_US
dc.classification.name Other Chemical Sciences en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity ISI:000264225200006 en_US
dc.description.keywords Artificial neural networks (ANNs); Gradient elution; Optimisation; HPLC; Benzodiazepines en_US
dc.staffid en_US
dc.staffid 910324 en_US


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