Journal
ANALYTICA CHIMICA ACTA
Volume 645, Issue 1-2, Pages 25-29Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aca.2009.05.002
Keywords
Paracetamol; Mefenamic acid; Second-order data matrix; Multivariate curve resolution alternative least squares
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Second-order advantage of excitation-emission fluorescence measurements was applied to the simultaneous determination of paracetamol (PC) and mefenamic acid (MF) in urine samples. Two drugs were quantified by multivariate curve resolution coupled to alternative least squares (MCR-ALS) in micellar media of sodium dodesyl sulfate (SIDS). Experimental conditions including pH and SIDS concentration were optimized. Under the optimum conditions, pH 2.0 and 0.05 mol L(-1) of SDS, paracetamol and mefenamic acid were determined in concentration range 4.00-20.00 mu g mL(-1) and 0.80-5.00 mu g mL(-1), respectively, in urine samples. (C) 2009 Elsevier B.V. All rights reserved.
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