1. 2. 3. 4. 5. 6. © Chemometric Optimization Of A SIA Promethazine Hydrochloride Assay Method Idris, AM; Assubaie, FN; Sultan, SM ELSEVIER SCIENCE BV,

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© Chemometric Optimization Of A SIA Promethazine Hydrochloride Assay Method Idris, AM; Assubaie, FN; Sultan, SM ELSEVIER SCIENCE BV, MICROCHEMICAL JOURNAL; pp: 7-13; Vol: 83 King Fahd University of Petroleum & Minerals Summary A sequential injection analysis (SIA) method for the assay of promethazine hydrochloride, based on its oxidation by acidified cerium(W), was optimized. Three chemometric approaches were applied: (i) factorial design (3(3) applied to surface plot and 2(3) applied to effect factor) for screening the potential interacting variables, (ii) univariant for optimizing insignificantly interacting variables and (iii) simplex for optimizing potentially interacting variables. The optimum experimental conditions were 30 mu l of 0.38 mol/l sulphuric acid, 30 mu l of 3.99 x 10(-3) mol/l cerium(IV), 20 mu l of promethazine hydrochloride and 20 mu l/s flow rate. The detection limit was x 10(-5) mol/l and the calibration curve was linear up to mol/l with a correlation coefficient , accuracy range of %, relative standard deviation 1.1 % (n = 10) and sample frequency at least 20 samples/h. The method was applied to tablet form and validated with the British Pharmacopoeia method. The developed SIA method is fully automated, reproducible, sensitive, rapid and reagent- saving, and therefore suitable for routine control in tablets form. (c) 2006 Elsevier B.V All rights reserved. References: *BRIT PHARM, E COP CD VER 6 0 *GRAB SOL, 2000, MULTISIMPLEX US GUID *US PHARM, 2003, E COP CD VER 26 NF 2 ALWARTHAN AA, 1993, ANAL CHIM ACTA, V282, P169 AMAN T, 2003, ANAL LETT, V36, P2961, DOI /AL BASAVAIAH K, 1998, TALANTA, V47, P59 Copyright: King Fahd University of Petroleum & Minerals;

© BASAVAIAH K, 2000, FARMACO, V55, P87 BASAVAIAH K, 2001, ANAL SCI, V17, P963 BASAVAIAH K, 2001, FARMACO, V56, P579 BASAVAIAH K, 2002, TURK J CHEM, V26, P551 BASAVAIAH K, 2003, INDIAN J CHEM TECHN, V10, P356 BASAVAIAH K, 2004, FARMACO, V59, P315 BAXTER RI, 1984, ANAL CHIM ACTA, V164, P171 CALATAYUD JM, 1992, ANAL CHIM ACTA, V264, P283 CALATAYUD JM, 1992, J PHARMACEUT BIOMED, V10, P37 CALATAYUD JM, 1992, MICROCHEM J, V45, P129 CHEN D, 1991, TALANTA, V38, P1227 DANIEL D, 2003, ANAL CHIM ACTA, V494, P215, DOI /S (03) DEORSI D, 1996, J PHARMACEUT BIOMED, V14, P1635 DIAZ AN, 1991, ANAL CHIM ACTA, V255, P297 FARHADI K, 2003, ACTA CHIM SLOV, V50, P395 FEHER Z, 1988, ANAL BIOMED CHEM, V32, P345 GOLABI SM, 1991, TALANTA, V38, P1253 GOWDA HS, 1978, ANAL CHIM ACTA, V99, P343 HOMYAK I, 1997, BIOMED CHROMATOGR, V11, P99 ISSA AS, 1984, TALANTA, V31, P287 ISSA YM, 2000, MIKROCHIM ACTA, V134, P9 KERDWAY MM, 1992, MIKROCHIM ACTA, V108, P323 KUZMICKA L, 1988, PHARMAZIE, V43, P288 LARA FJ, 2005, ANAL CHIM ACTA, V535, P101, DOI /j.aca LIMA JLFC, 1997, J PHARM SCI, V86, P MISIUK W, 1996, PHARMAZIE, V51, P MOHAMED FA, 1995, ANAL LETT, V28, P MUIJSELAAR PGHM, 1996, J CHROMATOGR A, V735, P NAGARAJA P, 2000, ANAL SCI, V16, P NI YN, 2001, ANAL CHIM ACTA, V439, P PENA L, 1993, J PHARM BIOMED ANAL, V11, P PUZANOWSKATARAS.H, 1989, PHARMAZIE, V44, P RAMA MJR, 2004, J PHARMACEUT BIOMED, V35, P1027, DOI /j/jphs REGULSKA E, 2002, J PHARMACEUT BIOMED, V27, P ROMERO AM, 1992, ANAL LETT, V7, P SAIF MJ, 2005, TALANTA, V67, P869, DOI /j.talanta SHAMSIPUR M, 2002, J AOAC INT, V85, P SULTAN SM, 1993, TALANTA, V40, P SULTAN SM, 1995, ANALYST, V120, P SULTAN SM, 2003, TALANTA, V59, P1073, DOI /S (03)00016-X 49. TAHA AM, 1983, ANALYST, V108, P1500 Copyright: King Fahd University of Petroleum & Minerals;

© USLU B, 1996, TURK J CHEM, V20, P323 WALSH MI, 1983, ANALYST, V108, P626 WALSH MI, 1988, TALANTA, V35, P320 WANG RY, 1999, J CHROMATOGR B, V721, P327 WANG RY, 2001, J SEP SCI, V24, P658 ZHANG Q, 2005, INT J PHARM, V302, P10, DOI /j.ijpharm For pre-prints please write to: Copyright: King Fahd University of Petroleum & Minerals;