Microextraction Methods
Dispersive liquid-liquid microextraction methods for the determination of Triazine herbicides in aqueous samples
... sensitive microextraction methods namely dispersive liquid-liquid microextraction (DLLME) and dispersive liquid-liquid microextraction based on solidification of floating organic droplet ...
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Recent Advances in Microextraction Methods for Sampling and Analysis of Volatile Organic Compounds in Air: A Review
... the microextraction methods including SPME, NTD and HF-LPME for the determination of VOCs in air, there are still some limitations for applying them as TWA ...
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Advances in analytical microextraction methods towards green chemistry
... Membrane supported liquid-phase microextraction is one of the emerging techniques in liquid-phase microextraction (LPME) system. In this system, a polypropylene membrane impregnated with an organic solvent ...
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Liquid and solid phase microextraction methods for the analysis of organic environmental pollutants
... Solid-Phase Microextraction Procedure Coupled with Gas Chromatography-Mass Spectrometry for the Analysis of Volatile Polycyclic Aromatic Hydrocarbons in Milk ...
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Ultrasonic and Cooling Approaches for Reinforcement of the Microextraction Methods
... kept at -20 °C. Then, the result was compared with those obtained in a situation where the temperatures of sample solution and fiber were 35 and 5 °C, respectively. Several analytes with different hydrophobicity and ...
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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
... common methods for the performing of the analytical separation were ...cost-effective methods with special emphasis on resolving the mentioned difficulties and detecting analytes at very low ...
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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
... other microextraction methods which use heavy metal ions for concentration, the ISFME method is faster and simpler, and can be implemented for solutions with high concentrations of salt ...includes ...
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Dispersive Liquid-Liquid Microextraction and determination of Platinum(IV) by High Performance Liquid Chromatography
... other microextraction methods and acoording to the obtained results, this extraction technique requires very little aqueous sample solution, organic ...
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Mixed matrix membrane microextraction for the analysis of polycyclic aromatic hydrocarbons, non-steroidal anti- inflammatory drugs and tobramycin in solutions
... novel microextraction methods based on the use of a mixed matrix membrane (MMM) were developed in various designs and ...MMM microextraction and preconcentration of organic pollutants was ...
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Solid Phase Microextraction pdf
... Since equilibrium rather than exhaustive extraction occurs in microextraction methods, SPME is ideal for R eld monitoring. It is unnecessary to measure the volume of the extracted sample and therefore the ...
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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
... factors in 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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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) ...extraction ...
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Dispersive liquid-liquid microextraction-gas chromatography-mass spectrometric determination of polycylic aromatic hydrocarbons in water
... Hashemi, P., Hosseini, S.M., Kakanejadifard, A., Azimi, G., Zohrehvan, S., (2010). Dispersive liquid-liquid microextraction of Cu (II) using a novel dioxime for its highly sensitive determination by Graphite ...
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← Return to Article Details APPLICATION OF RESPONSE SURFACE MODELING FOR OPTIMIZATION AND DETERMINATION OF MALONDIALDIALDEHYDE BY VORTEX-ASSISTED DISPERSIVE LIQUID-LIQUID MICROEXTRACTION AND GC-FID
... liquid-liquid microextraction and gas chromatography-flame ionization detection is presented for the extraction and determination of malondialdehyde )MDA( in blood plasma of ...
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Polymer monolithic rods microextraction coupled with high performance liquid chromatography for the analysis of trimethoprim, sulfadiazine and sulfamethoxazole in honey samples
... Novel polymer monolithic rods were prepared by in situ polymerization in a glass capillary and then coupled with high-performance liquid chromatography (HPLC) for the analysis of trimethoprim, sulfadiazine, and ...
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Synthesis and applications of new cyanopropyl-triethoxy silane and cyanopropyltriethoxysilane nanomaterials as sorbents of selected organophosphorus analysis
... D-µ-SPE methods were well below the maximum residue limit (MRL) set by the European Union and LODs of commercial CN-SPE ...friendly methods using SPE- CNPrTEOS, SPE-SiO 2 -NPs-CNPrTEOS and D-µ-SPE-SiO 2 ...
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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
... pH of the sample is an important factor during liquid– liquid extraction (LLE) process involving analytes that possess an acidic or basic moiety. The ionic form of a neutral molecule formed upon deprotonation of a weak ...
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An Ion-pair Dispersive Liquid-Liquid Microextraction for Simultaneous Determination of Synthetic Dyes in Ice Cream Samples by HPLC
... developed using spectrometric determination [15-21], Raman spectroscopic [22], voltammetry [23,24], capillary electrophoresis [25,26], ion chromatography [27] and high performance liquid chromatography with diode array ...
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Vol 2, No 4 (2013)
... microextraction (DLLME) followed by LC with fluorometric detection has been employed for the analysis of thiamine (vitamin B-1) in foods. Derivatization was carried out by the oxidation of thiamine with ...
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Ion-association dispersive liquid–liquid microextraction of ultra-trace amount of gold in water samples using Aliquat 336 prior to inductively coupled plasma atomic emission spectrometry determination
... Because of high toxicity and limitation in extracting various analytes of commonly used extraction solvents, two different aspects (I) the use of new solvents, typic- ally ionic liquids and (II) the expansion of the ...
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