Extraction and analysis of clonazepam and 7-aminoclonazepam in whole blood using a dual internal standard methodology
Keywords: Toxicology; Clonazepam; Chromatography; SPE;
مقالات ISI (ترجمه نشده)
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Development of a solid phase extraction procedure for HPLC–DAD determination of several angiotensin II receptor antagonists in human urine using mixture design
Keywords: SPE; ARA-II; Mixture design; Optimisation; PLS
Identification and quantification of GC-rich oligodeoxynucleotides in tissue extracts by capillary gel electrophoresis
Keywords: CpG; Oligonucleotide; Capillary gel electrophoresis; GC-rich; Secondary-structure; ODN; oligodeoxynucleotide; ORN; oligoribonucleotide; siRNA; small interfering ribonucleic acid; CpG ODN; immunomodulatory oligodeoxynucleotide containing a CpG motif; C-Mix
Quantification of low levels of organochlorine pesticides using small volumes (≤100 μl) of plasma of wild birds through gas chromatography negative chemical ionization mass spectrometry
Keywords: Avian plasma; SPE; HLB-urea extraction; GC-NCI-MS; Organochlorine; Baja California Sur
Using restricted-access materials and column switching in high-performance liquid chromatography for direct analysis of biologically-active compounds in complex matrices
Keywords: Biological matrix; Column switching; High-performance liquid chromatography; HPLC; RAM; Restricted-access material; Solid-phase extraction; SPE
Analysis of tetracycline antibiotics in soil: Advances in extraction, clean-up, and quantification
Keywords: Clean-up; Detection; Extraction; MIP; Molecularly-imprinted polymer; Quantification; Soil; Solid-phase extraction; SPE; Tetracycline antibiotic; Unknown identification
Sensitive SPE GC-MS-SIM screening of endocrine-disrupting herbicides and related degradation products in natural surface waters and robustness study
Keywords: GC/MS/SIM; Herbicides; Triazines; Endocrine-disrupting; Natural water; SPE
Simultaneous determination of the endocrine disrupting compounds nonylphenol, nonylphenol ethoxylates, triclosan and bisphenol A in wastewater and sewage sludge by gas chromatography–mass spectrometry
Keywords: Wastewater analysis; Sludge; Endocrine disruptors; Phenolic compounds; Silyl derivatization; SPE
On the use of solid phase ion exchangers for isolation of amino acids from liquid samples and their enantioselective gas chromatographic analysis
Keywords: Amino acids; Solid phase extraction; SPE; Sample preparation; Enantiomer
Identification of the major constituents of Hypericum perforatum by LC/SPE/NMR and/or LC/MS
Keywords: LC; liquid chromatography; NMR; nuclear magnetic resonance; SPE; solid-phase extraction; MS; mass spectrometry; ESI; electrospray ionization; DAD; diode array detector; Hypericum perforatum; LC/SPE/NMR; Dereplication; Hyperforin; Hyperfirin; Flavonoids;
Determination of functionalised carboxylic acids in atmospheric particles and cloud water using capillary electrophoresis/mass spectrometry
Keywords: CE/MS; SPE; Experimental design; Organic acids; Organic aerosol
Development of a harmonised method for the profiling of amphetamines: IV. Optimisation of sample preparation
Keywords: Amphetamine; Impurities; Profiling; Optimisation; SPE; LLE; GC-FID; GC–MS
Sample preparation for chromatography: An African perspective
Keywords: Passive sampler; Supported liquid membrane; Polycyclic aromatic hydrocarbons; Water samples; Microdialysis; Verterinary drugs; Endocrine disrupttors; Pesticides; Africa; Mycotoxins; Aflatoxins; Phthalate esters; SPE; Sample enrichment probe
Sensors-An effective approach for the detection of explosives
Keywords: Explosives; Explosive related compounds (ERC); Sensors; ERC; explosive related compounds; NB; ntirobenzene; NT; nitrotoluene; TNT; 2,4,6-trinitrotoluene; DNT; 2,4-dinitrotoluene; NG; nitroglycerine; EGDN; ethylene glycol dinitrate; PETN; pentaerythitol te
Separation and determination of diversiform phytosterols in food materials using supercritical carbon dioxide extraction and ultraperformance liquid chromatography-atmospheric pressure chemical ionization-mass spectrometry
Keywords: UPLC-MS, ultra-performance™ liquid chromatographic-mass spectrometer; APCI, atmospheric pressure chemical ionization; SIM, selective ion monitoring; LOD, limits of detection; LOQ, limits of quantification; SCE, supercritical carbon dioxide extraction; SPE
Simultaneous determination of 6 beta-blockers, 3 calcium-channel antagonists, 4 angiotensin-II antagonists and 1 antiarrhytmic drug in post-mortem whole blood by automated solid phase extraction and liquid chromatography mass spectrometry: Method developm
Keywords: Cardiovascular drugs; Beta-blockers; Calcium-channel antagonists; Angiotensin-II antagonists; Antiarrythmic drug; Whole blood; Experimental design; SPE; HPLC-MS
Recent advances in coupling solid-phase extraction and capillary electrophoresis (SPE–CE)
Keywords: At-line; Capillary electrophoresis; Coupling; In-line; Off-line; On-line; Preconcentration technique; Solid-phase extraction; SPE
PS-IIDQ: a supported coupling reagent for efficient and general amide bond formation
Keywords: Coupling reagent; Polymer-supported reagent; Immobilized reagent; IIDQ; Parallel synthesis; Amide bond formation; Amidation; Amide; BOP; benzotriazolyl-N-oxytrisdimethylaminophosphonium hexafluorophosphate; BOP-Cl; N,Nâ²-bis(2-oxo-3-oxazolidinyl)-phosphi
Analytical strategies to determine quinolone residues in food and the environment
Keywords: Capillary electrophoresis; CE; Environment; Food; Liquid chromatography; LC; Mass spectrometry; MS; Quinolone; Pressurized liquid extraction; PLE; Solid-phase extraction; SPE; Solvent extraction; SE
P-T paths reconstruction of a collisional event: The example of the Thiviers-Payzac Unit in the Variscan French Massif Central
Keywords: alm; almandine; an; anorthite; ap; apatite; bi; biotite; cel; celadonite; chl; chlorite; cd; cordierite; east; eastonite; g; garnet; gr; graphite; grs; grossular; ksp; K-feldspar; ky; kyanite; ilm; ilmenite; mo; monazite; mu; muscovite; pa; paragonite; pl
Review of methodology for the determination of benzimidazole residues in biological matrices
Keywords: Benzimidazole residues; Animal tissues; SPE; HPLC; LC–MS/MS
Expression and regulation of Spätzle-processing enzyme in Drosophila
Keywords: AMP; antimicrobial peptide; Dpt; Diptericin; Drm; Drosomycin; IMD; immune deficiency; RNAi; RNA interference; SPE; Spätzle-processing enzyme; Spz; Spätzle; RNA interference; Serine protease; Fat body; Lymph gland; Innate immunity; Spätzle-processing en
Novel solid-phase extraction method to separate 4-desmethyl-, 4-monomethyl-, and 4,4′-dimethylsterols in vegetable oils
Keywords: 4-Desmethylsterols; 4,4′-Dimethylsterols; Hazelnut oil; 4-Monomethylsterols; Phytosterols; SPE; Virgin olive oil
Determination of phospholipid fatty acids in biological samples by solid-phase extraction and fast gas chromatography
Keywords: Phospholipids; Fatty acids; SPE; Fast-GC
Chromatographic characterization and solid-phase extraction on diniconazole-imprinted polymers stationary phase
Keywords: Diniconazole; Molecular imprinted polymers; Adsorption isotherms; SPE;
Clinical determination of 17-hydroxyprogesterone in serum by LC–MS/MS: Comparison to Coat-A-Count™ RIA method
Keywords: LC–MS/MS; CAH; Congenital adrenal hyperplasia; 17-Hydroxy progesterone; RIA; SPE
Diagnostic Value of C-Reactive Protein for Predicting Activity Level of Crohn's Disease
Keywords: CD; Crohn's disease; CI; confidence interval; CRP; C-reactive protein; IQR; interquartile range; N; upper limit of normal; NPV; negative predictive value; PPV; positive predictive value; ROC; receiver operating characteristic; SE; sensitivity; SPE; spec
A simple and fast extraction method for organochlorine pesticides and polychlorinated biphenyls in small volumes of avian serum
Keywords: Serum; Polychlorinated biphenyls; Organochlorine pesticides; SPE; Urea; Oasis®
Application of solid-phase extraction and liquid chromatography–mass spectrometry to the determination of neonicotinoid pesticide residues in fruit and vegetables
Keywords: Nicotinoids; Pesticides; Insecticides; LC–ESI–MS; SPE; Food
Streamlined sample preparation procedure for determination of perchlorate anion in foods by ion chromatography–tandem mass spectrometry
Keywords: Perchlorate anion; Foods; SPE; IC–MS/MS
The isolation and purification of glucoraphanin from broccoli seeds by solid phase extraction and preparative high performance liquid chromatography
Keywords: Glucoraphanin; Preparative HPLC; SPE; Glucosinolates; Brassica sp.
New method for determination of ochratoxin A in beer using zinc acetate and solid-phase extraction silica cartridges
Keywords: Beer; Clean-up; Liquid chromatography; Mycotoxins; Ochratoxin A; SPE; Silica; Zinc acetate
A comparison of measurements and predictions for the April 15 and April 18, 2001 solar proton events
Keywords: Solar particle event; SPE; Space station; Radiation; Astronaut; April 2001;
SPE–GC–MS for the sampling and determination of unmetabolized styrene in urine
Keywords: Styrene; Urine; SPE; GC–MS; Biomonitoring
Extraction and analysis of flunitrazepam/7-aminoflunitrazepam in blood and urine by LC–PDA and GC–MS using butyl SPE columns
Keywords: Toxicology; Flunitrazepam; Chromatography; SPE
Diastereoisomeric resolution of a pronucleotide using solid phase extraction and high performance liquid chromatography: Application to a stereoselective decomposition kinetic in cell extracts
Keywords: Phosphotriester derivative; SPE; HPLC; Cell extracts; Stereoselective kinetic;
Monitoring of antioxidant properties of uric acid in humans for a consideration measuring of levels of allantoin in plasma by liquid chromatography
Keywords: DNPH; 2,4-dinitrophenylhydrazine; G-2,4-DNPH; glyoxylate-2,4-dinitrophenylhydrazone; GPx; glutathione peroxidase; MDA; malondialdehyde; ROS; reactive oxygen species; SOD; superoxide dismutase; SPE; solid-phase extraction; TAS; total antioxidant status; TB
Evaluation of automated micro solid phase extraction tips (μ-SPE) for the validation of a LC–MS/MS bioanalytical method
Keywords: Solid-phase extraction; SPE; Extraction methods; LC–MS/MS; Preclinical studies; Posaconazole; OMIX
LC/ESI/MS method development for the analysis of hepatotoxic cyclic peptide microcystins in animal tissues
Keywords: Microcystins; LC/MS; MMPB; Negative ESI; SPE
Sol–gel molecular imprinted ormosil for solid-phase extraction of methylxanthines
Keywords: MIP; Sol–gel; Ormosils; Caffeine; SPE
Air sampling with Empore solid phase extraction membranes and online single-channel desorption/liquid chromatography/mass spectrometry analysis: Determination of volatile and semi-volatile organophosphate esters
Keywords: Air sampling; Air analysis; Online; Single-channel desorption; Dynamic solvent extraction; Extraction methods; LC-MS; Volatile; Semi-volatile; Organophosphate esters; Empore disk; Solid phase extraction; SPE; Membranes; Particulate matter; Urban dust; Env
Determination of acrylamide in foodstuffs by liquid chromatography ion-trap tandem mass-spectrometry using an improved clean-up procedure
Keywords: Acrylamide; Food; SPE; LC–MS/MS
Mimicking molecular receptors for antibiotics – analytical implications
Keywords: Antibiotic; Chromatography; Combinatorial chemistry; MIP; Molecularly imprinted polymer; Sensing; Separation; Solid-phase extraction; SPE
Extraction properties of new polymeric sorbents in SPE/GC analysis of phenol and hydroquinone from water samples
Keywords: SPE; Polymeric sorbents; Porous copolymers; Gas chromatography
Determination of bisphenol A in milk by solid phase extraction and liquid chromatography–mass spectrometry
Keywords: BPA; Food analysis; LC-ESI-MS; Isotope labeled internal standard; SPE
Selective serotonin reuptake inhibitors in sewage influents and effluents from Tromsø, Norway
Keywords: SSRI; LC/MS; Environment; Sewage; Trace analysis; SPE; LLE
Analytical applications of carbon nanotubes: a review
Keywords: Biosensor; Carbon nanotube; CNT; Sensor; Solid-phase extraction; SPE; Stripping voltammetry; Voltammetry
MultiSimplex and experimental design as chemometric tools to optimize a SPE-HPLC-UV method for the determination of eprosartan in human plasma samples
Keywords: Eprosartan; Human plasma; HPLC; SPE; MultiSimplex; Experimental design
Multiresidue liquid chromatography tandem mass spectrometry determination of 52 non gas chromatography-amenable pesticides and metabolites in different food commodities
Keywords: Pesticides; Metabolites; Multiresidue analysis; Food analysis; LC–MS/MS; SPE