Gas chromatographic procedure for the simultaneous determination of five common antidiabetic drugs in blood

Drug level monitoring: chromatography of some minor groups of drugs

Some important facts about the chromatographic separation of a number of selected categories of drugs are summarized. The data refer to the chromatographic method of choice, stationary phase, mobile phase (carrier gas), detection procedure and (where available) method sensitivity. Also, fundamental instrumental parameters, namely injector, column and detector temperature, carrier gas and mobile phase flow-rate and gradient set-up are reported here. In all cases also the source material used for analysis is specified. The data are presented in table form, each table dealing with a particular category of drugs. The following categories of drugs are being dealt with: anthelmintics, antiarteriosclerotics, antibacterials, anticholinergics and cholinergics, anticoagulants, antidiabetics, antiemetics, antimycotics, antihistamines, antimalarials, antiparasitics, antiparkinsonics, antitussives, antiulcer drugs, antiviral compounds, appetite depressants and immunosuppressives.

The identification, assay and purity determination of chlorpropamide, glibenclamide and tolbutamide and their tablet preparations by thin-layer chromatography

A thin-layer chromatographic procedure is described for the identification and quantitative determination of chlorpropamide, glibenclamide and tolbutamide in both powder and tablet form. The coefficient of variation of the method is 0.6-0.7%, and results show good agreement with those obtained by the B.P. methods of assay. The TLC procedure has the advantage of greater specificity, and can also be used to identify and limit degradation products that may be present.