science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2019

Substance: diclofenac					Other Names: 2-(2,6-dichloranilino) phenylacetic acid

Formula: C14H11Cl2NO2					CAS-No.: 15307-86-5	PubChem: CID 3033

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).

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