Quantitative multiresolution analysis of paracetamol (PAR), ascorbic acid (AA) and acetylsalicylic acid (ASP) in pharmaceutical samples was carried out by using simultaneous use of discrete wavelet transformation (DWT) and ...

Three multivariate techniques, Inverse Least Squares (ILS), Principal Component Regression (PCR) and Partial Least Squares (PLS) were applied to the spectrophotometric determination of acetaminophen (AC) and chlorzoxazone ...

Soluble and less soluble phthalocyaninatocopper(II) derivatives (4a and 4b) were prepared from the corresponding 7-[(4'-benzo-15-crown-5)oyl]-15, 16-dibromo-2,3,6,7,8,9,11,12-octahydro-5H-benzo[e]-12-octahydro-5H-benzo[e ...

Conclusions: These results showed that public telephones are contaminated with various types of microorganisms and the level of contamination changes significantly with time. (C) 2005 The British Infection Society. Published ...

A practical high-performance liquid chromatographic method with fluorometric detection for the determination of guaifenesin and dextromethorphan in cough syrup is described. The developed method contains simple, accurate ...

An efficient synthesis is described for hexabromoanthracenes 3 and 4 by direct brom nation of 9,10-dibromoanthrecene 2. Whereas base-induced elimination of hexabromide 3 with t-BuOK gave 2,3,9,10-tetrabromoanthracene 5, ...

The title compound, C31H22N2O6, was obtained as the decomposition product of (E, E)-1,3-bis[9,10-dihydro-9-nitro10-(trinitromethyl)-9-anthryl] propane, which was synthesized via a photochemical reaction of 1,3-di-9-anthrylpropane ...

A new chemometric determination by high-performance liquid chromatography (HPLC) with photodiode array (PDA) detection was implemented for the simultaneous determination of naproxen sodium and pseudoephedrine hydrochloride ...