science-softCon uv/vis+ spectra data base; www.uv-spectra.de, (C) science-softCon 2019 Substance: thiamine Other Names: 2-[3-[(4-amino-2-methyl-pyrimidin-5-yl)methyl]-4-methyl-thiazol-5-yl] ethanol Formula: C12H17N4OS CAS-No.: 59-43-8 PubChem: 6042 Study: uv absorption spectra Authors: M.M. Sena, Z.F. Chaudhry, C.H. Collins, R.J. Poppi Title: Direct determination of diclofenac in pharmaceutical formulations containing B vitamins by using UV spectrophotometry and partial least squares regression Journal/Source: J. Pharmaceutical and Biomedical Analysis, 36, 743-749, (2004); doi:10.1016/j.jpba.2004.08.001 Data: diagram, table Energy/Wavelength range: 220 - 320 nm Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration: 50.0 µmol l-1 Phase: methanol/water solution pH: pH 3; pH 6 Comments: This work proposes a simple and rapid analytical procedure for determination of diclofenac (DCF) in the presence of B vitamins, based on UV measurements and partial least squares (PLS). Author to whom correspondence should be addressed: (e-mail address):