title: Densitometric high performance thin-layer chromatography identification and quantitative analysis of psychotropic drugs.
abstract: A thin-layer chromatography (TLC)-densitometry method has been developed to identify and quantify haloperidol, amitriptyline, sulpiride, promazine, fluphenazine, doxepin, diazepam, trifluoperazine, clonazepam, and chlorpromazine in selected psychotropic drugs. Separation was performed on precoated silica gel 60 F254 TLC plates. Chromatograms were developed in various mobile phases, and 8 of 30 tested phases were selected based on spot location and developing time. The identification and quantification were carried out based on ultraviolet densitometric measurements at chosen wavelengths. In addition to retention coefficients, the absorption spectra recorded directly from chromatograms were also used in qualitative analysis. Under established experimental conditions, high sensitivity of the method was achieved. The limit of detection ranged from 0.009 to 0.260 microg, depending on the wavelength selected for measuring. A satisfactory recovery, ranging from 92.99 to 104.70%, was achieved for individual constituents.
authors.affiliation: Jagiellonian University, Collegium Medicum, Department of Inorganic and Analytical Chemistry, 9 Medyczna St, 30-688 Kraków, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Maślanka
authors.forename: Jan
authors.initials: J
authors.lastname: Krzek
mesh_terms: D000639:Amitriptyline / Q000032:analysis; D014150:Antipsychotic Agents / Q000032:analysis; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D002746:Chlorpromazine / Q000032:analysis; D002845:Chromatography; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D002855:Chromatography, Thin Layer / Q000379:methods*; D002998:Clonazepam / Q000032:analysis; D003720:Densitometry / Q000379:methods*; D003975:Diazepam / Q000032:analysis; D004316:Doxepin / Q000032:analysis; D005476:Fluphenazine / Q000032:analysis; D006220:Haloperidol / Q000032:analysis; D004364:Pharmaceutical Preparations / Q000032:analysis*; D011395:Promazine / Q000032:analysis; D011619:Psychotropic Drugs / Q000032:analysis*; D012044:Regression Analysis; D013469:Sulpiride / Q000032:analysis; D014268:Trifluoperazine / Q000032:analysis; D014466:Ultraviolet Rays
chemical_list: D014150:Antipsychotic Agents; D004364:Pharmaceutical Preparations; D011619:Psychotropic Drugs; D004316:Doxepin; D000639:Amitriptyline; D014268:Trifluoperazine; D002998:Clonazepam; D013469:Sulpiride; D006220:Haloperidol; D011395:Promazine; D003975:Diazepam; D005476:Fluphenazine; D002746:Chlorpromazine