Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 214, Issue -, Pages 10-19Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2015.03.003
Keywords
Parabens; Electrochemical studies; Central composite rotatable design; Chemometric methods
Funding
- University of Kashan [256450-12]
Ask authors/readers for more resources
The use of multivariate voltammetric calibration for the simultaneous determination of two preservatives (methylparaben (MP) and propylparaben (PP)) in cosmetics is reported. At first, electrochemical studies of MP and PP were done by cyclic voltammetry (CV), chronocoulometry (CHC) and linear sweep voltammetry (LSV) techniques. Then central composite rotatable design (CCRD) and response surface methodology (RSM) were used for simultaneous optimization of effective parameters on voltammetric responses of the two analytes. The optimum values of pH, scan rate, step potential and pulse height were 7.0, 0.062 V s(-1), 0.009 V and 0.07 V, respectively. After optimization, the resolution of the two multicomponent mixtures has been accomplished by partial least squares (PLS) for voltammmetric studies of them at the surface of a glassy carbon electrode. Finally, the proposed method was found to be applicable for routine analysis (recovery tests) of the preservatives in a cosmetic product. (C) 2015 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available