Related impuritiesAssay of cyclohexanamine as related impurity in glipizide (as active ingredient or in its pharmaceutical formulations) has been achieved through pre-column derivatization with o-phtaldialdehyde (OPA) followed by the HPLC/DAD assay. Derivatization reaction was found to be fast, ...
(2004)297–303Simultaneoushigh-performanceliquidchromatographicanalysisofpregabalin,gabapentinandvigabatrininhumanserumbyprecolumnderivatizationwitho-phtaldialdehydeandfluorescencedetectionT.A.C.Vermeij,P.M.Edelbroek∗LaboratoryofClinicalChemistryandClinicalPharmacology,EpilepsyInstituteoftheNetherlands,SEIN,P.O.Box...
1982. Sensitive and rapid amino acid analysis of peptide hydrolysates by high performance liquid chromatography of o-phtaldialdehyde de- rivatives. J. Chromatogr. 237: 339-343.Burbach J. P. H. , Prins A. , Lebouille J. L. M. , Verhoef J. , and Witter A. ( 1982 ) Sensitive and...