Ionic liquid-Based ultrasound-assisted in situ solvent formation microextraction
Trace Determination of Duloxetine in Human Plasma by a Novel Ionic Liquid-Based Ultrasound-Assisted In Situ Solvent Formation Microextraction and High-Performance Liquid Chromatography
... A comparison of the method with formerly reported techniques for the analysis of DLX is brought in Table 4. It is clear that the LOQ of IL-UA-ISFME-HPLC-UV is better than the methods with the exception of protein ...
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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
... performance liquid chromatography (HPLC) coupled with chemometrics method was employed to analysis the ...extraction solvent, disperser solvent type and volume, temperature and time of ...
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Ultrasound Assisted Emulsification Dispersive Liquid Liquid Microextraction Based on Solidification of Floating Organic Droplet for Separation of Trace Gold Prior to Flame Atomic Absorption Spectroscopy Determination
... organic solvent droplet was floated on the surface of the aqueous solution due to low density below ...floated solvent was solidified because of low melting point ...solidified solvent was ...
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Determination Trace Levels of Vitamin C and Folic Acid in Urine Sample by Ultrasound-Assisted Dispersive Liquid-Liquid Microextraction Method Coupled HPLC-UV
... A new, rapid and highly sensitive and rapid method was proposed for the simultaneous determination trace levels of vitamin C and folic acid in the human urine samples. The inûuence affecting factors on the UA-DLLME such ...
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Use of Ionic Liquids for Preconcentration/Separation of Diazinon by In Situ Solvent Formation Microextraction (ISFME) and Measurement by the UV-Vis Spectrophotometer
... the ionic liquid [Hmim][Br] is fully mixable in aqueous phase prior to adding the opposite ion, due to the high mixability of the two phases in each other, the extraction is done in the shortest time ...
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Effervescence-assisted Dispersive Liquid-liquid Microextraction for Trace Analysis of Co(II) and Ni(II) from Aqueous Sample Based on Phthalic Acid as a Complexing agent and Co-disperser
... all microextraction methods. Selection of the extraction solvent in the proposed method was performed by considering requirements including formation of microdroplets in the presence of the gas ...
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Dispersive solid phase microextraction based on aminefunctionalized bimodal mesoporous silica nanoparticles for separation and determination of calcium ions in chronic kidney disease
... The ultrasound assisted- dispersive solid phase microextraction method (USA-SPME) was used for in-vitro study on separation/extraction of calcium ions in human blood of chronic kidney disease ...with ...
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A GREEN VORTEX ASSISTED IONIC LIQUID BASED DISPERSIVE LIQUID–LIQUID MICROEXTRACTION METHOD FOR PRECONCENTRATION AND DETERMINATION OF TRACE CADMIUM IN FOOD SAMPLES
... and mixed with 4.0 mL of phosphate-buffered solution (pH 8.0). Subsequently, BTANC 0.2% (w/v) (1.0 mL), 200 µL of [HMIM][FAP] (extraction solvent), and 500 µL of methanol (disperser solvent) were added, ...
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Ultrasound-assisted Emulsification Microextraction Method Based on Applying Low Density Organic Solvents as a Sensitive and Efficient Sample Preparation Method for Determination of Abamectin in Fruit Juice Samples
... of ultrasound-generated emulsations has recently found a growing interest to improve efficiency in liquid-liquid microextraction since they increase the mass transfer between the two ...
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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
... oral liquid preparations were investigated in this study. Simotang oral liquid (composed of Aucklandia lappa Decne, Citrus aurantium ...oral liquid (composed of Isatis indigotica Fort, Phragmites ...
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Determination of 2-phenylethanol in Rose Water Using Dispersive Liquid-Liquid Microextraction with Gas Chromatography Flame Ionization Detection
... phase microextraction (SPME) [12-14], headspace-solid-phase microextraction (HS-SPME) [15, 16], liquid-liquid microextraction (LLME) [17] and stir bar sorptive extraction (SBSE) ...
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Ionic Liquid Based Ultrasonic Assisted Extraction of Oleanolic Acid from Grape Seeds
... the solvent has not yet been reported in the literature. Ultrasound-assisted ex- traction parameters, such as ionic liquids with different cations and anions con- centration, solvent to ...
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Simultaneous determination of myricetrin, quercitrin and afzelin in leaves of Cercis chinensis by a fast and effective method of ionic liquid microextraction coupled with HPLC
... organic solvent extraction are time-consuming and inefficient and cause pollution to the environment and do not com- plete ...Currently, ionic liquids (ILs), also known as room temperature molten salts, is ...
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Ionic Liquid-based Microwave-Assisted Extraction (Il-MAE) of Oxyresveratrol from Morus alba Roots
... and ionic/charge–charge. Therefore, the characteristic of ionic liquids to influence the conformation of carbohydrates through hydrogen bonding and can be considered as viable substituents to be value-added ...
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Analysis of trihalomethane formation potential in river water using dispersive liquid-liquid microextraction technique
... namely liquid- liquid extraction (LLE), purge and trap (P&T), direct aqueous injection (DAI) and headspace techniques (Pavon et ...phase microextraction (SPME) has also been employed for analysis ...
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Dispersive liquid-liquid microextraction methods for the determination of Triazine herbicides in aqueous samples
... Sanagi, M. M., Miskam, M., Wan Ibrahim, W. A., Hermawan, D., & Aboul-Enein, H.Y. 2010b. Determination of partition coefficient and analysis of nitrophenols by three phase liquid phase microextraction ...
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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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Off-line Coupling of Ionic Liquid-Based Dispersive Liquid-Liquid Microextraction to HPLC-UV Method for the Drug Analysis in Pharmaceutical and Biological Samples
... Ionic liquids (ILs) are salts containing organic cations and various anions which have been introduced as green solvents. They are less toxic than other organic solvents and also due to their capacity to dissolve ...
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Trace Analysis of Phosphate Ion by Dispersive Liquid-liquid Microextraction Based on the Ion-pair Formation with Methyltrioctylammonium Chloride
... extracting solvent, as an essential parameter in the DLLME techniques, is of primary ...extraction solvent should be denser than water and, in addition, it should have low volatility, low water solubility ...
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Evaluation of thallium rate in soil after dispersive liquid-liquid micro-extraction
... dispersive liquid-liquid microextraction based on solidification of floating organic drop as a sample preparation method with ultrasound for separation and preconcentration of an ...
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