Introduction to Liquid Liquid Microextraction
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Liquid Liquid Microextraction sentence examples within deep eutectic solvent
Four new thymol-based ternary deep eutectic solvents were prepared and evaluated as the extractive phase in air-bubbles assisted dispersive liquid-liquid microextraction for extraction of tetracycline, doxycycline, and oxytetracycline from water before HPLC.
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A novel deep eutectic solvents (DES) was successfully applied as an emulsifier in vortex assisted liquid-liquid microextraction (VALLME) coupled with gas chromatography-mass spectrometry for the determination of organophosphorus pesticides in honey and fruit samples.
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Liquid Liquid Microextraction sentence examples within high performance liquid
Cyclodextrin-based dispersive liquid-liquid microextraction (CD-DLLME) was developed for the determination of triazole and strobilurin fungicides in water, juice, and vinegar samples using high-performance liquid chromatography-diode-array detection (HPLC-DAD).
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Isolation and enrichment of multiclass pesticides’ residue, namely, fungicides (benalaxyl), herbicides (atrazine), carbamate insecticides (carbofuran), organophosphate insecticides (chlorpyrifos), organochlorine insecticides (4,4′-DDT), and pyrethroid insecticides (bifenthrin), were made by combining acetone-based salting-out assisted extraction with the dispersive liquid-liquid microextraction (SADLLME) method, followed by high-performance liquid chromatography-diode array detection (HPLC-DAD).
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Liquid Liquid Microextraction sentence examples within solid phase extraction
ABSTRACT In this work, magnetic dispersive micro-solid phase extraction (MDMSPE) coupled with dispersive liquid-liquid microextraction (DLLME) was developed for Se(IV) and Se(VI) followed by graphite furnace atomic absorption spectrometry.
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A solid phase extraction method has been reported based on a molecularly imprinted polymer combined with deep eutectic solvents-dispersive liquid-liquid microextraction characterized by gas chromatography-mass spectrometry for the extraction and quantification of valproic acid from exhaled breath condensate samples.
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Liquid Liquid Microextraction sentence examples within chromatography mass spectrometry
The present study proposes an efficient binary solvent dispersive liquid-liquid microextraction (BS-DLLME) method that was developed for preconcentration of seven nervous system drug active compounds from aqueous media for their determination at trace levels by gas chromatography-mass spectrometry (GC-MS).
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Moreover, the chemical constituents of the samples were analysed using dispersive liquid-liquid microextraction and gas chromatography-mass spectrometry (GC-MS).
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Liquid Liquid Microextraction sentence examples within flame atomic absorption
Simple, sensitive, selective and green ultrasound assisted supramolecular solvent dispersive liquid-liquid microextraction (UA–SUPRAS-DLLME) method was developed for preconcentration and determination of chromium ions in waters, beverages and vegetables by using flame atomic absorption spectrometry.
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In this study, multivariate methodologies were applied in the optimization of a dispersive liquid-liquid microextraction (DLLME) method, aiming at the determination of Cu and Mn in coconut water samples by flame atomic absorption spectrometry.
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Liquid Liquid Microextraction sentence examples within hydrophobic deep eutectic
A simple and green ultrasound liquid-liquid microextraction method based on low viscous hydrophobic deep eutectic solvent (ULLME-LV-HDES) was proposed for the preconcentration and separation of selenium prior to HG-AAS detection.
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An hydrophilic/hydrophobic deep eutectic solvent (DES) system was developed and used as a disperser/extraction solvent mixture in dispersive liquid-liquid microextraction of tetracyclines (TCs) in water samples.
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Liquid Liquid Microextraction sentence examples within vortex assisted dispersive
These DESs were applied to vortex-assisted dispersive liquid-liquid microextraction of Sudan dyes from food samples, followed by high-performance liquid chromatographic determination.
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A vortex-assisted dispersive liquid-liquid microextraction (VALLME) technique was used for preconcentrating AFs before determination.
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Liquid Liquid Microextraction sentence examples within liquid liquid extraction
This study was focused on developing a method to determine 10 PFAS in placental tissue by combining salt-assisted liquid-liquid extraction with dispersive liquid-liquid microextraction and using liquid chromatography-tandem mass spectrometry.
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In this study, a modified salting-out-assisted liquid-liquid extraction (SALLE) combined with low density dispersive liquid-liquid microextraction (LD-DLLME) has been developed for quantitative determination of multiclass pesticide residues (atrazine, diazinon, ametryn, terbutryn, chlorpyrifos, dimethametryn, 4,4'-dichlorodiphenyldichloroethylene (4,4'-DDE), 4,4'-dichlorodiphenyldichloroethane (4,4'-DDD) and 4,4'-dichloro- diphenyltrichloroethane (4,4'-DDT)) levels in sugar and soil samples coupled with gas chromatography–mass spectrometry (GC-MS) detection.
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Liquid Liquid Microextraction sentence examples within switchable hydrophilicity solvent
Reversed-phase switchable-hydrophilicity solvent liquid-liquid microextraction (RP-SHS-LLME) was used prior to smartphone digital image colorimetry (SDIC) for the determination of copper as its metal chelate with N,N-diethyl-N’-benzoylthiourea (DEBT).
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Switchable-hydrophilicity solvent-liquid-liquid microextraction (SHS-LLME), as an efficient sample cleanup method, was combined with dispersive solid-phase microextraction (DSPME) for preconcentration of quercetin prior to its spectrophotometric determination.
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Liquid Liquid Microextraction sentence examples within natural deep eutectic
A non-ionic hydrophobic natural deep eutectic solvent (HNADES) based on thymol and menthol was proposed for the liquid-liquid microextraction of fourteen phthalates and one adipate from environmental water samples.
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In this work, an automated liquid-liquid microextraction procedure for the determination of sulfonamides (sulfamethoxazole, sulfamethazine and sulfapyridine) in urine samples using natural deep eutectic solvent is presented for the first time.
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Liquid Liquid Microextraction sentence examples within floating organic droplet
The studied antibiotics were efficiently extracted from milk samples with solidification of floating organic droplet in dispersive liquid-liquid microextraction.
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In this work, a new extraction method employs dispersive liquid-liquid microextraction based on a solid floating organic droplet (DLLME-SFO), by using a mixture composed of a less dense than water extraction solvent, 1-dodecanol, and a novel dispersive solvent, NADES.
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Liquid Liquid Microextraction sentence examples within floating organic drop
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In present work, combine ultrasound-assisted and dispersive liquid-liquid microextraction according to the solidification of floating organic drop as a sample preconcentration procedure for determining tetracycline hydrochloride HPLC in water and serum samples was used.
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In this work, a liquid-liquid microextraction methodology using solidified floating organic drop (SFODME) was combined with liquid chromatography and UV/Vis detection to determine non-steroidal anti-inflammatory drugs (NSAIDs) naproxen (NPX), diclofenac (DCF), and mefenamic acid (MFN) in tap water, surface water, and seawater samples.
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Liquid Liquid Microextraction sentence examples within solid phase microextraction
The sample preparation methods mainly applied for liquid samples were microextraction techniques including solid-phase microextraction, microextraction by packed sorbent, dispersive solid-phase extraction, dispersive liquid-liquid microextraction, hollow fiber-based liquid-phase microextraction, and so on.
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In this study, two modern and environmentally friendly microextraction strategies—namely, solid-phase microextraction (SPME) and dispersive liquid-liquid microextraction (DLLME)—are optimized and compared with respect to their extraction efficiencies for four immunosuppressants (tacrolimus, TAC; novolimus, NOV; everolimus, EVE; sirolimus, SIR) in serum and whole blood samples.
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Liquid Liquid Microextraction sentence examples within tandem mass spectrometry
For a reliable assessment of UV 328 metabolism, an analytical method applying dispersive liquid-liquid microextraction (DLLME) followed by gas chromatography tandem mass spectrometry and advanced electron ionization was developed which allows the determination of UV 328 and six of its metabolites in human whole blood.
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In this study, effervescent-assisted dispersive liquid-liquid microextraction with solidification of the aqueous phase (EA-DLLME-SAP), followed by Gas Chromatography-Tandem Mass Spectrometry (GC-MS-MS) quantitative analysis, was established for the preconcentration and determination of PBDEs in real environmental water samples.
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Liquid Liquid Microextraction sentence examples within quick easy cheap
As representative green chemistry methods, three sample preparation methods (dispersive liquid-liquid microextraction (DLLME), “quick, easy, cheap, effective, rugged, and safe” dispersive solid-phase extraction (QuEChERS-dSPE), and enhanced matrix removal-lipid (EMR-Lipid) dSPE) were evaluated for matrix removal efficiency, recovery rate, and matrix effect.
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The levels of benzo(a)pyrene (BaP), sum of 4 PAHs (ƩPAH4) and total PAHs (ƩPAH12) in 57 samples of smoked fish commonly consumed in Cambodia were determined by modified Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) – Enhanced Matrix Lipid Removal (EMR Lipid) – Dispersive Liquid-Liquid Microextraction (DMLLE) method and analysed by gas chromatography – mass spectrometry (GC/MS).
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Liquid Liquid Microextraction sentence examples within dispersive solid phase
A combination of switchable-hydrophilicity liquid-liquid microextraction prior to magnetic nanoparticle-based dispersive solid-phase microextraction is proposed for the determination of erythrosine using UV/Vis spectrophotometry at 520 nm.
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Folic acid magnetic nanoparticles have been prepared and utilized as an effective and reliable sorbent in magnetic dispersive solid phase extraction combined with dispersive liquid-liquid microextraction for the extraction of seven pesticides from different juices before their determination by gas chromatography–flame ionization detector.
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Liquid Liquid Microextraction sentence examples within liquid chromatography coupled
Spiked grape juice samples with AFs treated by PEF or HPP were extracted using dispersive liquid-liquid microextraction (DLLME) and determined by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS-IT).
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In this study, we describe a dispersive liquid-liquid microextraction strategy for bongkrekic acid (BA) purification, enrichment, and liquid chromatography coupled with mass spectrometry (LC-MS/MS) analysis.
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Liquid Liquid Microextraction sentence examples within ultrahigh performance liquid
Methods: A simple and rapid dispersive liquid-liquid microextraction (DLLME) technique coupled with ultrahigh performance liquid chromatography (UHPLC) was developed for the extraction and analysis of methadone and tramadol from postmortem vitreous humor samples.
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Urinary BPA concentrations were measured by dispersive liquid-liquid microextraction and ultrahigh performance liquid chromatography with tandem mass spectrometry detection, and SDF analysed using the Sperm Chromatin Dispersion test.
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Liquid Liquid Microextraction sentence examples within ultrasonic assisted dispersive
For the ultrasonic-assisted dispersive liquid-liquid microextraction (UA-DLLME), the following conditions were used: 8 mL of sample with pH adjusted to 8, extraction solvent: 500 μL of chloroform, dispersive solvent: 500 μL of acetonitrile; samples were vortexed and sonicated for 2 minutes, each.
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Liquid Liquid Microextraction sentence examples within flame ionization detector
In this work, an automated method for the extraction and preconcentration of VFAs, based on dispersive liquid-liquid microextraction with magnetic stirring in syringe, and gas chromatography with flame ionization detector for the separation and detection, is described.
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Liquid Liquid Microextraction sentence examples within performance liquid chromatography
Samples were previously extracted and pre-concentrated by dispersive liquid-liquid microextraction (DLLME) and later analyzed by ultra-performance liquid chromatography coupled with electrospray ionization in tandem with mass spectrometry (UPLC-ESI-MS/MS) detector.
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Liquid Liquid Microextraction sentence examples within atomic absorption spectrometry
A highly efficient preconcentration method based on the dispersive liquid-liquid microextraction technique (DLLME), that incorporated a magnetic ionic liquid (MIL) as extractant and electrothermal atomic absorption spectrometry (ETAAS) detection, was developed to determine Pb at ultra-trace levels in different bee products.
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Liquid Liquid Microextraction sentence examples within liquid chromatography tandem
In this work, an analytical method using dispersive liquid-liquid microextraction (DLLME) to determine amphetamine and derivatives in oral fluid samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed and validated.
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Liquid Liquid Microextraction sentence examples within gas chromatography flame
It is combined with dispersive liquid-liquid microextraction and used for the extraction of some pesticide residues from fruit juice samples prior to their analysis by gas chromatography-flame ionization detection.
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Liquid Liquid Microextraction sentence examples within Dispersive Liquid Liquid Microextraction
In the present study, a simple, low-cost and green ultrasound assisted- dispersive liquid liquid microextraction (UA-DLLME) procedure was developed for monitoring of trace copper (Cu), cadmium (Cd) and lead (Pb) in honey prior to their analysis by flame atomic absorption spectrometry (FAAS).
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In the study, a simple, fast, easy to use, cost-effective and green analytical method was developed for the selective extraction and determination of 4-methylimidazole (4-MeI) from caramel colored drinks and foods by using vortex assisted-ionic liquid-based dispersive liquid liquid microextraction (VA-IL-DLLM) followed by spectrophotometry.
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01 μg/mL (for α-dicarbonyl compounds) by vortex-assisted liquid-liquid microextraction (VALLME).
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Dispersive liquid-liquid microextraction has caused more and more attention in sample preparation due to its rapid and efficient extraction process.
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This was realized through a combination of azo dye formation and dispersive liquid-liquid microextraction of dye when a 37-fold enrichment was obtained.
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5 mol L-1HNO3) followed by liquid-liquid microextraction of the acid extractwith dodecanoic acid/THF supramolecular solvent using diethyl dithiophosphate as a chelating agent.
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In this work, an efficient microextraction method was applied to the separation and preconcentration of Ni(II) namely homogeneous liquid-liquid microextraction via flotation assistance (HLLME-FA).
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In this paper, a novel liquid-liquid microextraction procedure for the HPLC-DAD determination of tetracyclines in milk samples was proposed.
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Dispersive liquid-liquid microextraction (DLLME), in which a small amount of the water-insoluble extraction solvent is dispersed in the sample, is the most successful mode in terms of number of applications reported.
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For more cleanup and preconcentration, a dispersive liquid-liquid microextraction (DLLME) method was employed after performing the first step.
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In thisresearch, for the first time a double-solvent supramolecular system (DSS) was developed as an extractant without disperser solvent for dispersive liquid-liquid microextraction (DLLME).
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After separation with a magnet and then releasing Hg (II), further preconcentration was carried out by dispersive liquid-liquid microextraction (DLLME).
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In this study, a simple, cheap and rapid technique has been developed for speciation analysis of chromium in different water samples using air-assisted liquid-liquid microextraction and digital image decomposition into the primary colors Red (R), Green (G) and Blue (B).
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A derivatization and air-assisted dispersive liquid-liquid microextraction procedure with organic phase solidification on a paper template was developed for the first time.
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Efficient separation and preconcentration of inorganic Sb species in different water samples were performed in this work by a novel dispersive liquid-liquid microextraction (DLLME) method based on the application of a magnetic ionic liquid (MIL) and electrothermal atomic absorption spectroscopy (ETAAS) detection.
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A new simple and efficient method has been developed for the ultra-preconcentration of multiclass pesticide residues including penconazole, chlorpyrifos, ametryn, clodinafop-propargyl, diniconazole, oxadiazon, and fenpropathrin from some fruit juice samples based on evaporation of the sedimented organic phase obtained from dispersive liquid-liquid microextraction.
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A Dispersive liquid-liquid microextraction (DLLME) based analytical method was developed and validated using HPLC-PDA and LC-MS/MS for quantitative determination of phthalates (Dimethyl phthalate (DMP), Diethyl phthalate (DEP), Benzyl Butyl Phthalate (BzBP), Dibutylphthalate(DBP), Diethylhexyl phthalate(DEHP), Di-n-octyl phthalate (DOP) in different cosmetic products (After Shave Lotion, Deodorants, Perfume and Liquid Body Lotion).
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A tandem microextraction method, centrifuge free dispersive liquid-liquid microextraction and thin-film microextraction (DLLME-TFME), was used for analyzing molinate in environmental samples by ion mobility spectrometry (IMS).
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In the present work, dispersive liquid-liquid microextraction (DLLME) was used to extract six synthetic cannabinoids (JWH-018, JWH-019, JWH-073, JWH-200, or WIN 55,225, JWH-250, and AM-694) from oral fluids.
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For the dispersive liquid-liquid microextraction, 0.
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