PMID- 27915157 OWN - NLM STAT- MEDLINE DCOM- 20180807 LR - 20180807 IS - 1873-3557 (Electronic) IS - 1386-1425 (Linking) VI - 174 DP - 2017 Mar 5 TI - Double injection/single detection asymmetric flow injection manifold for spectrophotometric determination of ascorbic acid and uric acid: Selection the optimal conditions by MCDM approach based on different criteria weighting methods. PG - 203-213 LID - S1386-1425(16)30685-0 [pii] LID - 10.1016/j.saa.2016.11.031 [doi] AB - A simple and sensitive double injection/single detector flow injection analysis (FIA) method is proposed for the simultaneous kinetic determination of ascorbic acid (AA) and uric acid (UA). This method is based upon the difference between the rates of the AA and UA reactions with Fe(3+) in the presence of 1, 10-phenanthroline (phen). The absorbance of Fe(2+)/1, 10-phenanthroline (Fe-phen) complex obtained as the product was measured spectrophotometrically at 510nm. To reach a good accuracy in the differential kinetic determination via the mathematical manipulations of the transient signals, different criteria were considered in the selection of the optimum conditions. The multi criteria decision making (MCDM) approach was applied for the selection of the optimum conditions. The importance weights of the evaluation criteria were determined using the analytic hierarchy process, entropy method, and compromised weighting (CW). The experimental conditions (alternatives) were ranked by the technique for order preference by similarity to an ideal solution. Under the selected optimum conditions, the obtained analytical signals were linear in the ranges of 0.50-5.00 and 0.50-4.00mgL(-1) for AA and UA, respectively. The 3sigma detection limits were 0.07mgL(-1) for AA and 0.12mgL(-1) for UA. The relative standard deviations for four replicate determinations of AA and UA were 2.03% and 3.30% respectively. The method was also applied for the analysis of analytes in the blood serum, Vitamine C tablets, and tap water with satisfactory results. CI - Copyright (c) 2016. Published by Elsevier B.V. FAU - Boroumand, Samira AU - Boroumand S AD - College of Chemistry, Shahrood University of Technology, Shahrood, P.O. Box 36155-316, Iran. FAU - Chamjangali, Mansour Arab AU - Chamjangali MA AD - College of Chemistry, Shahrood University of Technology, Shahrood, P.O. Box 36155-316, Iran. Electronic address: marab@shahroodut.ac.ir. FAU - Bagherian, Ghadamali AU - Bagherian G AD - College of Chemistry, Shahrood University of Technology, Shahrood, P.O. Box 36155-316, Iran. LA - eng PT - Journal Article DEP - 20161120 PL - England TA - Spectrochim Acta A Mol Biomol Spectrosc JT - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy JID - 9602533 RN - 0 (Indicators and Reagents) RN - 0 (Phenanthrolines) RN - 268B43MJ25 (Uric Acid) RN - E1UOL152H7 (Iron) RN - PQ6CK8PD0R (Ascorbic Acid) SB - IM MH - Ascorbic Acid/*analysis MH - *Decision Making MH - Flow Injection Analysis/*methods MH - Hydrogen-Ion Concentration MH - Indicators and Reagents MH - Iron/chemistry MH - Osmolar Concentration MH - Phenanthrolines/chemistry MH - Spectrophotometry/*methods MH - Uric Acid/*analysis OTO - NOTNLM OT - Ascorbic acid and uric acid OT - Flow injection analysis OT - Multi criteria decision making (MCDM) OT - Simultaneous determination OT - TOPSIS EDAT- 2016/12/05 06:00 MHDA- 2018/08/08 06:00 CRDT- 2016/12/05 06:00 PHST- 2016/05/18 00:00 [received] PHST- 2016/11/07 00:00 [revised] PHST- 2016/11/16 00:00 [accepted] PHST- 2016/12/05 06:00 [pubmed] PHST- 2018/08/08 06:00 [medline] PHST- 2016/12/05 06:00 [entrez] AID - S1386-1425(16)30685-0 [pii] AID - 10.1016/j.saa.2016.11.031 [doi] PST - ppublish SO - Spectrochim Acta A Mol Biomol Spectrosc. 2017 Mar 5;174:203-213. doi: 10.1016/j.saa.2016.11.031. Epub 2016 Nov 20.