Hollow Fiber Liquid Phase Microextraction (HF-LPME)
Extraction and Determination of Three Chlorophenols by Hollow Fiber Liquid Phase Microextraction Spectrophotometric Analysis, and Evaluation Procedures Using Mean Centering of Ratio Spectra Method
... termed hollow fiber liquid phase microextraction (HF-LPME) was utilized to extract three chlo- rophenols, 2-chlorophenol (2-CP), 2,4-dichlorophenol (2,4-DCP) and 2,4,6-trichlorophenol ...
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Trace Determination of Tamoxifen in Biological Fluids Using Hollow Fiber Liquid Phase Microextraction Followed by High Performance Liquid Chromatography Ultraviolet Detection
... of hollow fiber liquid-phase microextraction (HF-LPME) combined with high-performance liquid chromatography-ultraviolet detection (HPLC-UV) was evaluated for the extraction and ...
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The application of hollow fiber liquid phase microextraction based on green chemistry to analyze carcinogenic nitrosamines in food samples
... A hollow fiber membrane has a larger area per unit volume; therefore it is more effective to perform the ...of hollow fiber membrane has a density of 3000 total M 2 /M 3 compared to flat ...
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Sludge Removal of Nonsteroidal Anti Inflammatory Drugs during Wastewater Treatment Studied by Direct Hollow Fiber Liquid Phase Microextraction
... direct hollow fiber liquid phase microextraction method was applied to water as well as sludge samples collected from the primary, secondary and tertiary treatment respectively and the ...
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Hollow-Fiber liquid-phase Microextraction Followed by High Performance Liquid Chromatography for the Determination of Trace Amounts of Methylphenidate Hydrochloride in Biological Fluids
... a microextraction technique was introduced to detection and quantification of methylphenidate hydrochloride in urine and plasma ...samples. Hollow ûber based liquid phase ...
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Preconcentration and Speciation of Chromium Using Dispersive Liquid-Liquid Microextraction; Application to Milk and Different Water Samples
... (rich phase) high viscosity and in Homogeneous liquid–liquid extraction (HLLE), acid and salt are utilized which cause exothermic reactions, so they are replaced with Liquid-phase ...
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Hollow IFber Based Liquid Phase Microextraction Combined High Performance Liquid Chromatograph for the Determination Trace Amounts of Opiclone in Biological Fluids
... three-phase hollow-fiber liquid-phase microextraction combined with HPLC-UV was proposed for the determination of zopiclone in urine ...donor phase composition, salt ...
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Development of Dispersive Liquid-Liquid Microextraction Procedure for Trace Determination of Malathion Pesticide in Urine Samples
... (SDME), hollow fiber liquid-phase micro-extraction (HF–LPME), and dispersive liquid-liquid microextraction (DLLME) are con- sidered as subset of the LPME method ...
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Application of Ultrasound-assisted Emulsification Solidification of Floating Organic Drop Microextraction for Preconcentration and Trace Detection of Iron (III) in Water and Human Urine Samples
... drop microextraction (SDME) [7-8], continues–flow microextraction, hollow fiber liquid–phase microextraction (HF-LPM) [9], dispersive liquid- liquid ...
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Liquid and solid phase microextraction methods for the analysis of organic environmental pollutants
... film microextraction was studied, where multi-walled carbon nanotube (MWCNT)- impregnated agarose film was synthesized and applied as adsorbent film in solid phase microextraction ...
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Determination of Trace Amounts of Methamphetamine in Biological Samples by Hollow Fiber Liquid-phase Microextraction Followed by High Performance Liquid Chromatography
... the hollow fiber nature to be immobilized in the pores of hollow fiber wall, and have a low volatility to avoid evaporation during the extraction process ...
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Phase equilibrium and partition coefficient of selected pesticides and nitrophenols in double and triple-phase liquid-phase microextraction
... three-phase hollow fiber-protected liquid-phase microextraction method (HF-LPME) has been developed and used for the determination of partition coefficient and analysis of ...
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Analysis of opioids in postmortem urine samples by dispersive liquid-liquid microextraction and high performance liquid chromatography with photo diode array detection
... Recently, microextraction procedures are the most effect- ive sample preparation methods prior ...example, liquid-phase microextraction (LPME) was successfully used for extraction of analytes ...
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Preconcentration and Determination of Organophosphorus Pesticides in Water Samples by Carbon Nanotube Reinforced Hollow Fiber Solid/Liquid Phase Microextraction and Gas Chromatography-Flame Ionization Detector
... Pesticides were extracted from the sample to the organic solvent immobilized in the fibre and they were desorbed in methanol prior to chromatographic analysis. Experimental parameters related to microextraction ...
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Hollow Fiber Microporous Membrane Liquid Liquid Extraction for Determination of Polybrominated Diphenyl Ethers at Trace Levels in Sewage Sludge with Gas Chromatography Electron Capture Detection
... three phase extraction system is applied. In two-phase LPME that is also called microporous membrane liq- uid-liquid extraction (MMLLE), the organic solvent filled in the lumen and the pores of the ...
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Optimization of sol-gel hybrid mediated hollow fiber-solid phase microextraction for the analysis of selected aldehydes
... for hollow fiber-solid phase microextraction of aflatoxins: B1 and B2, in cereals combined with high performance liquid chromatography– diode array ...
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Ionic liquid loaded hollow fiber membrane as a solid phase microextraction fiber; application in determination of aromatic hydrocarbons in water samples
... proposed fiber was exposed to the headspace of the water ...the fiber to the headspace of the sample for 40 min, the fiber containing retained analytes was withdrawn from the vial and immediately ...
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Determination of Trace Amounts of Lead by Modified Graphite Furnace Atomic Absorption Spectrometry after Liquid Phase Microextraction with Pyrimidine 2 thiol
... Two ml of lead solution was adjusted at pH = 5 and treated with 0.5 ml of 3.0% (m/v) Pyrimidine-2-thiol was transferred to a 10 ml vial. Lead formed a cationic com- plex with Pyrimidine-2-thiol in aqueous solution. The ...
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One-step ionic liquid-based ultrasound-assisted dispersive liquid–liquid microextraction coupled with high-performance liquid chromatography for the determination of pyrethroids in traditional Chinese medicine oral liquid preparations
... high-performance liquid chromatography (HPLC) with ultraviolet (UV) detection [11], diode array detection [12], or MS ...oral liquid preparations is difficult because of the extremely low pyrethroid ...
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Removal of Lead (II) from Battery Industry Wastewater by HFSLM - Volume 3 Number 2 (Apr. 2012) - IJCEA
... uniform fiber spacing, which in turn leads to a higher mass transfer coefficient than those obtained with individual fibers ...a hollow fiber module are listed in Table ...
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