Using silica coated magnetite nanoparticles modified with anionic surfactant aggregates as a solid phase microextraction adsorbent for determination of fluoroquinolones in egg samples by spectrofluorimetry

2015 ◽  
Vol 7 (18) ◽  
pp. 7831-7839 ◽  
Author(s):  
Ezzat Naddaf ◽  
Mahmoud Ebrahimi ◽  
Zarrin Es'haghi ◽  
Hossien Akhlaghi
Keyword(s):  
Anionic Surfactant ◽  
Magnetite Nanoparticles ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Ion Pair ◽  
Surfactant Aggregates ◽  
Target Analytes

A simple and rapid IP-SPME method was developed for extraction and determination of fluoroquinolones. The target analytes were converted into ion pair complexes with SDBS.

Anionic surfactant coacervation extraction-magnetic solid phase microextraction for determination of malachite green

2014 ◽  
Vol 6 (19) ◽  
pp. 7703-7709 ◽  
Author(s):  
Hong Tian ◽  
Hao Wu ◽  
Chengxuan Hao ◽  
Liming Du ◽  
Yunlong Fu
Keyword(s):  
River Water ◽  
Malachite Green ◽  
Anionic Surfactant ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Magnetic Solid

A novel, fast, and efficient two-step microextraction technique for preconcentration and extraction of trace amounts of malachite green in fishpond water, river water and flesh of fish was developed using spectrophotometry.

scholarly journals Use of direct immersion solid-phase microextraction on polyacrylate and polydimethylsiloxane stationary phases for simultaneous determination of the neutral and basic pharmaceuticals in wastewater

2013 ◽  
Vol 11 (10) ◽  
pp. 1634-1643
Author(s):  
Urszula Kotowska ◽  
Katarzyna Bieńczyk
Keyword(s):  
Simultaneous Determination ◽  
Solid Phase Microextraction ◽  
Municipal Wastewater ◽  
Solid Phase ◽  
Stationary Phases ◽  
Selected Ion Monitoring ◽  
Low Concentrations ◽  
Target Analytes ◽  
Direct Immersion

AbstractDirect immersion solid-phase microextraction has been optimized and applied to the simultaneous determination of the neutral and basic pharmaceuticals: caffeine, carbamazepine, clomipramine, chlorprothixene and clotrimazole at low concentrations in municipal wastewater. Two absorption type stationary phases: polydimethylsiloxane (PDMS) and polyacrylate (PA) have been found to be most effective for extraction of target analytes. The separation and detection were carried out by gas chromatograph coupled with mass spectrometer working in the selected ion monitoring mode. The method was validated for linearity, detection and quantitation limits, selectivity and precision. The average correlation coefficient of the calibration curves was 0.9933. The LOD values in influent and effluent wastewater were in the range of 10–145 ng L−1 and 4–111 ng L−1, respectively, which were a bit higher than those in the deionized water due to matrix effect. The high values of distribution coefficient (K fs ) in PDMS/water and PA/water systems (log K fs between 3.05 and 4.23) indicates the very high applicability of these stationary phases for determination of carbamazepine, clomipramine, chlorprothixene and clotrimazole in water samples.

A Novel Solid-phase Microextraction Method Coupled with HPLC for Determination of Four Sulfonamides in Milk Samples

2013 ◽  
Vol 41 (4) ◽  
pp. 529
Author(s):  
Ying PENG ◽  
Huan HE ◽  
Cheng SUN ◽  
Ya-Ling ZHANG ◽  
Wen-Chao LI ◽  
...  
Keyword(s):  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Milk Samples
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