Sensitive and specific methods are needed for measuring human exposure to carcinogens. Synchronous fluorescence spectrophotometry can be used to measure fmol of aflatoxins, their metabolites, and DNA adducts. Computer-assisted analysis of spectra of these agents obtained by synchronous fluorescence spectrophotometry can be displayed as contour maps which are highly specific for each agent. Indi...

Three rapid, simple and accurate analytical methods for the determination of citalopram in tablets were developed. The capillary zone electrophoresis (CZE) method was carried out using fused silica capillary with 67 mM phosphate buffer pH 7.0 as the background electrolyte, 30 kV of separation voltage and UV detection at 239 nm. The direct spectrophotometric method was performed by measuring the...

Article history: Received on: 15/10/2012 Revised on: 06/12/2012 Accepted on: 08/01/2013 Available online: 28/01/2013 In this study zero, first and second order derivative spectrophotometric method were developed for the estimation of sitagliptine. In zero order spectrophotometery, absorbance value was measured at 267nm. In first derivative spectrophotometry amplitudes were measured at 213nm. In...

The interaction between felodipine and bovine serum protein was studied, the optimal experimental conditions were selected, fluorescence quenching mechanism discussed. filodipine determined by UV spectrophotometry, selected control variable method. of in system explored spectrophotometry. intensity most obvious under buffer solution pH 7.4, concentration 8.0*10 -4 mol/L, reaction time 30min 25°...