Dispersive liquid-liquid micro-extraction
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 al., ...
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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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Off-line Coupling of Ionic Liquid-Based Dispersive Liquid-Liquid Microextraction to HPLC-UV Method for the Drug Analysis in Pharmaceutical and Biological Samples
... for extraction and quantitative analysis of fluoxetine and propafenone using off-line coupling of ionic liquid-based dispersive liquid-liquid micro-extraction with high ...
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Development of Dispersive Liquid-Liquid Microextraction Procedure for Trace Determination of Malathion Pesticide in Urine Samples
... Methods: Dispersive liquid-liquid micro-extraction (DLLME) technique coupled with high-performance liq- uid chromatography equipped with ultraviolet detector (HPLC-UV) developed for ...
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Synthesis and applications of new cyanopropyl-triethoxy silane and cyanopropyltriethoxysilane nanomaterials as sorbents of selected organophosphorus analysis
... Dispersive micro solid phase extraction (D-µ-SPE) has been widely used to isolate pesticides (Jiménez-Soto et ...2012). Dispersive micro-solid phase extraction is a quick, easy, ...
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Preconcentration and Speciation of Chromium Using Dispersive Liquid-Liquid Microextraction; Application to Milk and Different Water Samples
... A 10 ml sample solution containing Cr(III) was adjusted to pH = 10 with 1mL carbonate buffer in a glass tube with a conical bottom. Then, a mixture containing 500 µl methanol (disperser solvent), 70 µl chloroform ...
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Recent developments and applications of dispersive liquid–liquid microextraction (DLLME)
... Dispersive micro-solid-phase extraction (D- µ-SPE) combined with DLLME (Li, 2012) was developed for GC–MS of PAHs in environmental samples. For the dispersion step, 1-octanol is injected rapidly into ...
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Dispersive liquid-liquid microextraction coupled with magnetic nanoparticles for extraction of zearalenone in wheat samples
... fast dispersive liquid-liquid microextraction (DLLME) coupled with micro-solid phase extraction (μ-SPE) was developed for determination of zearalenone (ZEN) in wheat ...the ...
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Application of Dispersive Liquid-Liquid Microextraction and Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop for the Preconcentration of Crocin in the Saffron Samples
... of extraction solvent is low (in the range of 10 to 30°C); the organic drop could be solidified at low temperatures, so it was easily scoped out from the water ...the extraction solvent and the sample ...
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Energy dispersive-EXAFS of Pd nucleation at a liquid/liquid interface
... concentrations are 100 mM TEACl in the aqueous phase and 1 mM [TEA][TFPB] in the organic phase in addition to the reactants and background electrolytes mentioned above. XAFS data were obtained in transmission mode at the ...
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Extraction and determination of codeine phosphate in water samples by dispersive liquid liquid microextraction coupled to UV vis spectrophotometry
... The addition of salt improves the extraction efficiency in many conventional extraction processes. Because the organic acceptor/ aqueous donor phase distribution coefficient can be enhanced by increasing ...
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Ionic Liquid Based Dispersive Liquid Liquid Microextraction and Enhanced Determination of the Palladium in Water, Soil and Vegetable Samples by FAAS
... subsequent extraction into IL ...complex extraction was studied at the range of ...the extraction of palladium at high pH values may be due to the hydrolysis of palladium ions and at the lower pH ...
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Quantitative Detection of Trace Malachite Green in Aquiculture Water Samples by Extractive Electrospray Ionization Mass Spectrometry
... and RNA-Aptamer–based assay [15] have been adapted for the detection of MG in various water matrices. Although the aforementioned techniques are considered as routine MG detection techniques, they are time-consuming and ...
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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
... example, liquid-phase microextraction (LPME) was successfully used for extraction of analytes from aqueous samples (Jeannot and Cantwell 1996; He and Lee ...to extraction of analytes from com- plex ...
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Determination of Cobalt in Food, Environmental and Water Samples with Preconcentration by Dispersive Liquid Liquid Microextraction
... (as extraction solvent) were rapidly injected into a sample solution by using a ...the extraction phase was evaporated in a water bath and the residue was dissolved into ...
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Kirchhoff, Fabian (2012): Untersuchungen zur Anwendung der Flüssigkeitschromatographie-Tandem-Massenspektrometrie in der medizinischen Laboratoriumsdiagnostik. Dissertation, LMU München: Medizinische Fakultät
... generic liquid handling robotic ...for micro titer plates, ...comprehensive liquid handling systems have been used for more than a decade now, particularly in the fi eld of drug ...
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Quantitation of Sildenafil in Human Plasma by Reverse Phase High Performance Liquid Chromatography
... with liquid-liquid extraction was calculated by comparing the peak ...underwent liquid-liquid extraction to that of identical concentrations of sildenafil prepared in methanol ...
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Degradation Dynamics and Residue Analysis of Flubendiamide in Cabbage and Soil by Liquid Chromatography Tandem Mass Spectrometry with Dispersive Solid Phase Extraction
... To formulate a scientific basis for a reasonable spray dose and safe interval period of 20% fluben- diamide water dispersible granule (WDG) on controlling vegetable pests, degradation dynamics of flubendiamide in cabbage ...
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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
... Solidified floating organic drop microextraction has some benefits including, need small sample volume, reduction in the analysis time, using green solvents, inexpensive analysis costs, and proper accuracy. The proposed ...
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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
... alternative extraction solvents for sample treatment because of their advantages of strong thermal stability, good miscibility with organic and aque- ous solvents, low vapor pressure, and good solubility for both ...
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