A fast and green preconcentration method based on surfactant ion pair-switchable solvent dispersive liquid–liquid microextraction for determination of phenazopyridine in pharmaceutical and biological samples
作者: Yahya HamidMohammad Reza Fat’hi
作者单位: 1Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz
刊名: Journal of the Iranian Chemical Society, 2018, Vol.15 (8), pp.1813-1820
来源数据库: Springer Journal
DOI: 10.1007/s13738-018-1378-z
关键词: PhenazopyridineAliquat 336Surfactant ion pair-switchable solvent dispersive liquid–liquid microextractionPharmaceutical and biological samples
英文摘要: Abstract(#br)Herein, a novel, fast, green and sensitive surfactant ion pair-switchable solvent dispersive liquid–liquid microextraction (SIP-SS-DLLME) method was developed for the preconcentration of phenazopyridine. Protonated triethylamine bicarbonate is synthesized by the reaction of triethylamine and CO 2 in the presence of water. This protonated switchable solvent (soluble in water) easily converted to triethylamine which is insoluble in water. Aliquat 336 was used as an ion-pair agent in this method, which results in the increase of the phenazopyridine extraction into the switchable solvent. Variables affecting the performance of extraction were studied and optimized. The relative standard deviation (RSD) was 3.1% for five repeated determinations containing 20 µg/L of...
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影响因子:1.467 (2012)

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