Liquid phase micro extraction
Determination of Organic Sulfur Contaminants Using Hollow Fibre-protected Liquid-phase Micro-extraction Coupled with Gas Chromatography
... fiber liquid-phase ...the micro- syringe ...of extraction into the GC injection port. Extraction and injection processes were performed in the following steps: (1) 8 ml of the aqueous ...
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Directly Suspended Droplet Three Liquid Phase Micro extraction of Ecstasy in Hair Combined with UV Visible Spectroscopy / Diode array Detector
... droplet liquid–liquid–liquid micro extraction (DSDME) has been used to determine residues of ecstasy (3,4-methylenedioxy-N-methylamphetamine) in hair ...solvent, extraction and ...
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A Simple and Fast Method Based on New Magnetic Ion Im-printed Polymer as a Highly Selective Sorbent for Preconcentra-tion and Determination of Cadmium in Environmental Samples
... as liquid-liquid extraction , solid-liquid extraction (3), liquid-phase Micro-extraction (4), solid-phase micro extraction (5), ...
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Rapid Determination of Non-steroidal Anti-inflammatory Drugs in Aquatic Matrices by Two-phase Micro-electrodriven Membrane Extraction Combined with Liquid Chromatography
... Two-phase micro-electrodriven membrane extraction (EME) procedure for the pre-concentration of selected non-steroidal anti-in fl ammatory drugs (NSAIDs) in aquatic matrices was ...acceptor ...
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Evaluation of thallium rate in soil after dispersive liquid-liquid micro-extraction
... solid-phase extraction (Nukatsuka et al., 2004), liquid-liquid extraction (Afzali et ...single-drop micro-extraction (Chamsaz et ...of micro-column (Dadfarnia et ...
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SIMULTANEOUS DETERMINATION TRACE LEVELS OF VITAMIN B1 AND VITAMIN B9 IN HUMAN SAMPLES BY ULTRASOUND ASSISTED DISPERSIVE LIQUID LIQUID MICROEXTRACTION COUPLED WITH HPLC UV
... increases extraction efficiency for analytes when using ultrasound- assisted ...increase extraction efficiency and reduce extraction time, ultrasonic radiation is used in ultrasound-assisted ...
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Numerical investigation of Phenol Extraction using Liquid Liquid Stratified Flow in a T shaped Micro channel
... another phase, the parallel reactions can be used. The liquid - liquid extraction depends on the mass transfer flux, residence time and the area of liquid - liquid ...the ...
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Molecularly Imprinted Micro Solid Phase Extraction for the Selective Determination of Phenolic Compounds in Environmental Water Samples with High Performance Liquid Chromatraphy
... In this work, 2,4,6-trichlorophenol (2,4,6-TCP) mole- cularly imprinted polymers were prepared by suspension polymerization method using 2,4,6-TCP as template mo- lecule, liquid papaffin oil as non-aqueous media, ...
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Synthesis and applications of new cyanopropyl-triethoxy silane and cyanopropyltriethoxysilane nanomaterials as sorbents of selected organophosphorus analysis
... matrices. Liquid-liquid extraction is a versatile and multipurpose sample- preparation technique and recommended in many standard analytical methods (Tahboub et ...Solid phase ...
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Developments/Application of Ionic Liquids/Poly Ionic Liquids in Magnetic Solid-Phase Extraction and Solid Phase Microextraction
... (GC), liquid chromatography (LC) and capillary electro chromatography (CEC) [40], and as solvents or modifiers in liquid extraction techniques ...{e.g., liquid-liquid extraction ...
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Multivariate Optimization of Volatile Compounds Extraction in Chardonnay Wine by Headspace Solid Phase Micro Extraction and Gas Chromatography Coupled with Tandem Mass Spectrometry
... of extraction phase, dispersed on a solid support, under controlled conditions, in direct contact with the sample (IS-SPME) or with the headspace ...in liquid, gaseous and solid samples, reduced ...
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Liquid-liquid two phase flow and solvent extraction in the squeezing regime with on-chip separation of phases
... circuits, micro- and nanotechnology offer a means to realize several process steps on a single integrated device, hence limiting the system’s (dead) volume and the amount of required processing ...
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Chemical Analysis of Volatile Constituents of Pulicaria Mauritanica Isolated by Hydrodistillation and Headspace Solid-phase Micro-extraction Techniques. Antimicrobial Activity of its Essential Oil
... the liquid quasi-total extraction of plant volatiles and the latter technique is controlled by a solid/gas equilibrium step and a competition between interfering molecules at binding sites on the ...the ...
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A Developed Electromembrane Technique Based on Flat Electrospun Membrane Coupled with Gas-chromatography for the Determination of Phthalates in Different Water Samples
... frequently extraction techniques are liquid-liquid extraction (LLE) and solid phase extraction ...solid-phase micro extraction (SPME) and stir bar sorptive ...
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Stir bar sorptive extraction as a sample preparation technique for chromatographic analysis: An overview
... to liquid extraction. These methods include solid phase extraction (SPE), solid phase micro extraction (SPME), In-tube solid phase micro extraction, ...
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Extraction and Determination of Three Chlorophenols by Hollow Fiber Liquid Phase Microextraction Spectrophotometric Analysis, and Evaluation Procedures Using Mean Centering of Ratio Spectra Method
... the micro- ...acceptor phase (about 12 µL) was with- drawn back into the ...acceptor phase was injected into a UV-Vis cell and then was di- luted to ...acceptor phase solution and intro- duced ...
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Separation of Biomass Pyrolysis Oil by Supercritical CO2 Extraction
... The bio-oil used in the extraction experiment was made by flash pyrolysis of pulverized corn stalk with size of 0.1 mm~0.25 mm in the temperature range of 477~480℃. 5A molecular sieve, activated carbon, silica and ...
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Determination of Some Polycyclic Aromatic Hydrocarbons in the Caspian Seawater by HPLC Following Preconcentration with Solid-Phase Extraction
... Before sample preconcentration, the cartridge was cleaned with 5 ml n-hexane and subsequently conditioned with 5 ml methanol and 10 ml water. Flow rate of the sample through the cartridge was controlled at 5 ml/min under ...
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DEVELOPMENT AND VALIDATION OF REVERSE PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY METHOD FOR ESTIMATION OF NICOTINE IN NICOTINE GUM TABLET.
... 10. Hiroyuki K., Reiko I., Katsuharu Y., Keita S. Determination of nicotine, cotinine, and related alkaloids in human urine and saliva by automated in- tube solid-phase microextraction coupled with liquid ...
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Analysis of Phase Noise Influence on Micro-Doppler Feature Extraction of Vibrating Target
... of micro-motion ...the phase noise intensity of the radar transmitting signals and make the extraction more difficult; therefore, it is particularly necessary to study the influence of phase ...
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