0000000000016783

AUTHOR

A. Cerdán Vidal

showing 2 related works from this author

Use of the Apparent Content Curves for the spectrophotometric identification of substances: identification of amphetamines

1994

The possibility of identification of substances which have similar spectral behaviour by means of Apparent Content Curves has been studied. This study is carried out with absorption, excitation and emission spectra of several amphetamines of widespread pharmaceutical use. Results obtained show that amphetamine, phenylpropanolamine, pseudoephedrine, phenylephrine, epinephrine, dopamine and methoxyamphetamine can be identified with a probability of >95%.

Chromatographymedicine.diagnostic_testChemistryAnalytical chemistryAbsorption (skin)PseudoephedrineBiochemistryAnalyse qualitativeAnalytical ChemistrySpectrophotometrymedicineStatistical analysisAmphetaminePhenylephrinePhenylpropanolaminemedicine.drugFresenius' Journal of Analytical Chemistry
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Determination of Caffeine in Analgesic Formulations Using the Apparent Content Curves Method

1994

Abstract The determination of caffeine by UV spectroscopy in pharmaceutical samples, containing different compounds which provide spectral interferences as aspirin, paracetamol, chlorfeniramine or propylphenazone, is carried out. The proposed procedure is based on the apparent content curves method in order to resolve binary, ternary and multicomponent mixtures. Results obtained are, in all cases, in agreement with contents found by a HPLC procedure used as reference method.

ChromatographyBiochemistry (medical)Clinical BiochemistryAnalgesicAnalytical chemistryBiochemistryHigh-performance liquid chromatographyDosage formAnalytical Chemistrychemistry.chemical_compoundUltraviolet visible spectroscopychemistryContent (measure theory)ElectrochemistryTernary operationCaffeineQuantitative analysis (chemistry)SpectroscopyAnalytical Letters
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