Ebrahimi, Mahmoud; Es’haghi, Zarrin; Samadi, Fatemeh; Bamoharram, Fatemeh Farrash; Hosseini, Mohammad-Saeid published the artcile< Rational design of heteropolyacid-based nanosorbent for hollow fiber solid phase microextraction of organophosphorus residues in hair samples>, Name: 4-(Pyridin-1-ium-1-yl)butane-1-sulfonate, the main research area is organophosphorus pesticide microextraction human hair ionic liquid.
A novel heteropolyacid-based supported ionic liquid (IL) mediated sol-gel hybrid organic-inorganic is presented for effective use in hollow fiber solid phase microextraction (HF-SPME). The authors examined a Keggin-based IL that was evaluated in conjunction with sol-gel. This study shows that Keggin-based IL sol-gel generated porous morphol. pro effective extraction media. The method was developed for the extraction of the organophosphorus pesticides (OPs); diazinon, fenitrothion and malathion from human hair samples. The OPs were subsequently analyzed with HPLC and photodiode array detection (HPLC-PDA). In the basic condition (pH 10-11), the gel growth process in the presence of IL was initiated. Afterward, this sol was injected into a polypropylene hollow fiber segment for in situ-gelation process. Parameters affecting the efficiency of HF-SPME were thoroughly investigated. Linearity was observed over a range of 0.02-50,000 μg/g and 0.0001-25,000 ng/mL with detection limits between 0.0074-1.3000 μg/g and 0.00034-0.84 ng/mL for the OPs in hair and aqueous matrixes, resp. The relative recoveries in the real samples, for OPs in the storekeeper hair ranged from 86 to 95.2%.
Journal of Chromatography A published new progress about Hair. 21876-43-7 belongs to class pyridine-derivatives, and the molecular formula is C9H13NO3S, Name: 4-(Pyridin-1-ium-1-yl)butane-1-sulfonate.