Spectrophotometric, chemometric and chromatographic determination of naphazoline hydrochloride and chlorpheniramine maleate in the presence of naphazoline hydrochloride alkaline degradation product

Goodman-Hillman, 1996 Paton, 1983, Clinical pharmacokinetics of H1-receptor antagonists (the antihistamine), Clin Pharmacokinet, 10, 477, 10.2165/00003088-198510060-00002 Szabolcs, 1980, Conversion process of charge transfer in the naphazoline-iodine system, Acta Pharm Hung, 50, 130 Strelets, 1986, Determination of naphazoline, Farm Zh, 63, 64 Kelani, 1998, Simultaneous determination of naphazoline hydrochloride and chlorpheniramine maleate by derivative spectrophotometry and by densitometry, AOAC Int, 81, 1128, 10.1093/jaoac/81.6.1128 Goicoechea, 2002, Complementary use of partial least-squares and artificial neural networks for the non-linear spectrophotometric analysis of pharmaceutical samples, Anal Bioanal Chem, 374, 460, 10.1007/s00216-002-1435-3 Bai, 1988, Determination of naphazoline hydrochloride in danleijin ophthalmic soln, Yaoxue Tongbao, 23, 739 Díaz, 2004, Comparison of three different phosphorescent methodologies in solution for the analysis of naphazoline in pharmaceutical preparations, Anal Bioanal Chem, 379, 30, 10.1007/s00216-004-2533-1 Bauer, 1983, High-performance liquid-chromatographic stability-indicating assay for naphazoline and tetrahydrozoline in ophthalmic preparations, J Pharm Sci, 72, 1347, 10.1002/jps.2600721128 Chabenat, 1992, Determination of naphazoline in rat plasma using column liquid chromatography with ultraviolet detection, Biomed Chromatogr, 6, 241, 10.1002/bmc.1130060508 Ruo-wan, 2010, Determination of naphazoline hydrochloride and chlorpheniramine maleate in naiminjixin eye drops by HPLC, Food Drug, 979, 238 Massaccesi, 1987, Gas-chromatographic determination of some imidazolines in pharmaceutical preparations by using FFAP as stationary phase, Pharm Acta Helv, 62, 302 Qin, 1995, Determination of chlorpheniramine maleate in Keteling capsules by complexometric-titration spectrophotometry, Yaowu-Fenxi-Zazhi, 15, 36 Nie, 1992, Determination of chlorpheniramine maleate in Ganmaotong tablets by acidic dye spectrophotometry, Yaowu-Fenxi-Zazhi, 12, 242 Leung, 1989, Determination of chlorpheniramine maleate in tablets by second-derivative absorption spectrophotometry, The Analyst, 114, 241, 10.1039/an9891400241 Rao, 1986, High-performance liquid-chromatographic determination of prednisolone and chlorpheniramine maleate in combined dosage forms, Indian Drugs, 24, 37 Lu, 1988, Determination of chlorpheniramine maleate in capsule and tablet formulations by TLC – scanning, Yaowu-Fenxi-Zazhi, 8, 177 Gaitonde, 1987, Analysis of a drug preparation containing ephedrine hydrochloride, theophylline, chlorpheniramine maleate and diazepam by thin-layer chromatography, Indian Drugs, 24, 486 Liang, 1992, Secondary-derivative differential-pulse polarography and its applications, Yaoxue Xuebao, 27, 135 Dent, 1981, Sodium coumarin-6-sulphonate, a fluorimetric ion-pairing reagent for tertiary amines. Application to determination of chlorpheniramine maleate, Anal Lett, 14, 1031, 10.1080/00032718108081446 Hanna, 1993, Determination of the optical purity and absolute configuration of threo-methylphenidate by proton nuclear magnetic resonance spectroscopy with chiral solvating agent, J Pharm Biomed Anal, 11, 855, 10.1016/0731-7085(93)80080-K Chen, 1987, Indirect determination of chlorpheniramine maleate, diphenhydramine hydrochloride and carbetapentane citrate by spectrophotometry, Shenyang-YaoxueYuan-xuebao, 4, 122 Abdel Fattah, 1987, Analysis of pheniramine maleate and chlorpheniramine maleate via their iron(III) complexes, Anal Lett, 20, 1667, 10.1080/00032718708078033 Qi, 1986, Extraction – determination of chlorpheniramine maleate with zincon in antirhinitis tablets, Yaowu Fenxi Zazhi, 6, 52 Selig, 1981, Potentiometric titration of organic cations precipitated by tetraphenylborate II, Anal Chem, 308, 21, 10.1007/BF00487828 Brittain H. Analytical profiles of drug substances and excipients; 1992, p. 333–337. The United States Pharmacopeia and National Formulary. The Official Compendia of Standards, Asian ed., USP 30-NF 25, Rockvill, MD: The United States Pharmacopeial Convention Inc.; 2007. The British pharmacopoeia 2007, London: The Stationery Office. Electronic version; 2007. Marin, 2004, J Pharm Biomed Anal, 35, 1035, 10.1016/j.jpba.2004.03.011 Brereton, 1997, Multilevel multifactor designs for multivariate calibration, Analyst, 122, 1521, 10.1039/a703654j Kramer, 1998 Espinosa, 1993, Simultaneous determination of 2-furfuraldehyde, 5-hydroxymethylfurfuraldehyde and malonaldehyde in mixtures by derivative spectrophotometry and partial least-squares analysis, Anal Chim Acta, 347, 371 Salinas, 1990, A new spectrophotometric method for quantitative multicomponent analysis resolution of mixtures of salicylic and salicyluric acids, Talanta, 37, 347, 10.1016/0039-9140(90)80065-N Ni, 1997, Simultaneous spectrophotometric determination of mixtures of food colorants, Anal Chim Acta, 354, 163, 10.1016/S0003-2670(97)00297-3 Grinberg, 1990