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Matyas Ripszam et al.
Environmental toxicology and chemistry, 34(2), 266-274 (2014-11-14)
Dissolved organic carbon (DOC) plays a key role in determining the environmental fate of semivolatile organic environmental contaminants. The goal of the present study was to develop a method using commercially available hardware to rapidly characterize the sorption properties of
Mohammad Saraji et al.
Journal of separation science, 39(18), 3616-3623 (2016-07-28)
We report on the fabrication of a thin-film composite for the extraction of bisphenol A from aqueous solutions. Nylon-6, C18 particles, and polyethylene glycol were used to prepare the thin film sorbent. Bisphenol A was used as a model compound
Michiel T O Jonker
Environmental toxicology and chemistry, 35(6), 1371-1377 (2015-11-10)
Octanol-water partition coefficients (KOW ) are widely used in fate and effects modeling of chemicals. Still, high-quality experimental KOW data are scarce, in particular for very hydrophobic chemicals. This hampers reliable assessments of several fate and effect parameters and the
Idaira Pacheco-Fernández et al.
Talanta, 158, 125-133 (2016-06-28)
Several crosslinked polymeric ionic liquid (PIL)-based sorbent coatings of different nature were prepared by UV polymerization onto nitinol wires. They were evaluated in a direct-immersion solid-phase microextraction (DI-SPME) method in combination with high-performance liquid chromatography (HPLC) and diode array detection
Jie Huang et al.
Journal of separation science, 39(22), 4384-4390 (2016-11-03)
In this work, a facile and environmentally friendly solid-phase microextraction assay based on on-fiber derivatization coupled with gas chromatography and mass spectrometry was developed for determining four nonvolatile index biogenic amines (putrescine, cadaverine, histamine, and tyramine) in fish samples. In
Hiroyuki Kataoka et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1019, 140-146 (2015-09-10)
A simple and sensitive method for the determination of 8-hydroxy-2'-deoxyguanosine (8-OHdG), a marker of oxidative DNA damage in human urine, was developed using automated on-line in-tube solid-phase microextraction (SPME) coupled with stable isotope-dilution liquid chromatography-tandem mass spectrometry (LC-MS/MS). Creatinine was
K Maes et al.
Phytochemical analysis : PCA, 12(3), 153-158 (2001-11-14)
Various factors controlling the recoveries of volatile organic compounds in vitro headspace analysis of tomato plants (Lycopersicon esculentum Mill. 'Moneymaker'), sampled using solid phase micro-extraction, were evaluated and optimised. The variations in composition of the headspaces were determined as a
Faheem Uddin Rajer et al.
Microbiology (Reading, England), 163(4), 523-530 (2017-04-19)
Rhizobacterial volatile organic compounds (VOCs) play an important role in the suppression of soil-borne phytopathogens. In this study, the VOCs produced by a soil-isolate, Bacillus subtilis FA26, were evaluated in vitro for their antibacterial activity against Clavibacter michiganensis ssp. sepedonicus
Jeong-Won Kim et al.
Journal of microbiology and biotechnology, 28(1), 50-58 (2017-11-10)
Elephant garlic (
A Héctor Hernández-Romero et al.
Marine pollution bulletin, 48(11-12), 1130-1141 (2004-06-03)
The water quality of the Pozuelos-Murillo lagoon system in southern Mexico was evaluated during three periods between March and October 2002, with particular emphasis on the detection of organochlorine and organophosphorous pesticide residues in water and sediments. Physicochemical and microbiological
Naeemullah et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 154, 157-163 (2015-11-02)
An innovative and simple miniaturized solid phase microextraction (M-SPME) method, was developed for preconcentration and determination of silver(I) in the fresh and waste water samples. For M-SPME, a micropipette tip packed with activated carbon cloth (ACC) as sorbent, in a
Konrad Celiński et al.
Chemistry & biodiversity, 12(8), 1208-1213 (2015-08-13)
Headspace solid-phase microextraction (HS-SPME) coupled to GC/MS analysis was used to identify the constituents of pine-needle volatiles differentiating three closely-related pine species within the Pinus mugo complex, i.e., P. uncinata Ramond ex DC., P. uliginosa G.E.Neumann ex Wimm., and P.
Ling-Yu Zhao et al.
Talanta, 192, 339-346 (2018-10-24)
A thiol- and amine-bifunctionalized organic-inorganic hybrid monolithic column was prepared for the first time via one-pot co-condensation of 3-mercaptopropyltrimethoxysilane, N-(2-aminoethyl)-3-aminopropyltriethoxysilane and tetraethylorthosilicate, and utilized for separation and enrichment of inorganic arsenic species. Various parameters of solid phase microextraction (SPME) operation
Łukasz Marcinkowski et al.
Analytical and bioanalytical chemistry, 407(4), 1205-1215 (2014-11-25)
Commercially available solid-phase microextraction fibers used for isolation of polar analytes are based on the adsorption phenomenon. In consequence, typical limitations bonded with analytes displacement and matrix effects are very frequent. In the present study, alternative solution is described. Polycaprolactone
Paola Bocchini et al.
Environmental monitoring and assessment, 187(6), 320-320 (2015-05-06)
Dimethyl fumarate (DMF) is a chemical compound which has been added to silica gel bags used for preserving leather products during shipment. DMF has recently been singled out due to its ability to induce a number of medical problems in
Xialin Luo et al.
Talanta, 165, 377-383 (2017-02-06)
In this work, a novel NH
Nassiba Baimatova et al.
Analytica chimica acta, 873, 38-50 (2015-04-26)
A new and simple method for benzene, toluene, ethylbenzene and o-xylene (BTEX) quantification in vehicle exhaust was developed based on diffusion-controlled extraction onto a retracted solid-phase microextraction (SPME) fiber coating. The rationale was to develop a method based on existing
Guizhen Li et al.
Analytical and bioanalytical chemistry, 410(30), 7849-7858 (2018-10-05)
A ternary deep eutectic solvent (TDES) was used as both template and functional monomer in the synthesis of TDES-based molecularly imprinted polymers (TDES-MIPs). A meticulous miniaturized solid-phase microextraction (mini-SPME) method followed by high-performance liquid chromatography (HPLC) were used for the
Qingxiang Zhou et al.
Analytica chimica acta, 869, 43-49 (2015-03-31)
Graphene is a good adsorbent for organic pollutants, especially for compounds containing benzene rings. When used in TiO2 nanotube arrays for micro-solid phase extraction (μ-SPE), the combination of graphene's strong adsorptive properties with its good separation capabilities results in excellent
Zhoubing Huang et al.
Talanta, 178, 629-635 (2017-11-16)
The introduction of functional groups into metal organic frameworks has great potential for enhancement in adsorption performance of nitrosamines using solid phase microextraction (SPME). However, pre-functionalization and post-modification generally suffer from the same limitation that the additional functional groups occupy
Meike Paschke et al.
Archives of toxicology, 89(8), 1241-1255 (2015-07-04)
With the revision of the European Tobacco Products Directive (2014/40/EU), characterizing flavors such as strawberry, candy, vanillin or chocolate will be prohibited in cigarettes and fine-cut tobacco. Product surveillance will therefore require analytical means to define and subsequently detect selected
Anongphan Junkuy et al.
Journal of the Medical Association of Thailand = Chotmaihet thangphaet, 97(7), 776-784 (2014-10-01)
Three diagnostic methods have dominated drug-abuse research: self-report, urinalysis and hair analysis. Previous studies have compared detection rates for various drugs, but none has focused a three-pronged concordance study on the use of methamphetamine (MA). To determine and compare the
Jonathan J Grandy et al.
Analytical chemistry, 88(3), 1760-1767 (2015-12-19)
In this work, a durable and easy to handle thin film microextraction (TFME) device is reported. The membrane is comprised of poly(divinylbenzene) (DVB) resin particles suspended in a high-density polydimethylsiloxane (PDMS) glue, which is spread onto a carbon fiber mesh.
Drug detection in breath: effects of pulmonary blood flow and cardiac output on propofol exhalation.
Svend Kamysek et al.
Analytical and bioanalytical chemistry, 401(7), 2093-2102 (2011-06-07)
Breath analysis could offer a non-invasive means of intravenous drug monitoring if robust correlations between drug concentrations in breath and blood can be established. In this study, propofol blood and breath concentrations were determined in an animal model under varying
Maria V Vavoura et al.
Molecules (Basel, Switzerland), 20(2), 1922-1940 (2015-01-30)
Volatile compounds, physicochemical and sensory attributes of four sweet cherry cultivars (Canada giant, Ferrovia, Lapins and Skeena) grown in Northern Greece were determined. Eighteen volatile compounds were identified and semi-quantified in cherries using solid phase micro extraction in combination with
Zhongping Huang et al.
Journal of separation science, 39(13), 2544-2552 (2016-05-10)
Headspace solid-phase microextraction coupled with cryotrap gas chromatography and mass spectrometry was applied to the analysis of volatile organic compounds in pleural effusions. The highly volatile organic compounds were separated successfully with high sensitivity by the employment of a cryotrap
Aristide Maggiolino et al.
Journal of the science of food and agriculture, 99(4), 1660-1667 (2018-09-11)
Cooked meat flavor arises through a combination of thermally generated aroma volatile and nonvolatile compounds in a matrix of muscle fiber, connective tissue, and fat. Ageing could affect meat odor, taste, and flavor by the development of odor compounds in
Anthony J De Lucca et al.
Annals of agricultural and environmental medicine : AAEM, 17(2), 301-308 (2010-12-29)
Toxigenic and atoxigenic strains of Aspergillus flavus were grown on potato dextrose agar (PDA) and wetted (23% moisture) sterile, cracked corn for 14 and 21 days, respectively. Volatile compounds produced by A. flavus, as well as those present in the
Tian-Yang Zhang et al.
Water research, 98, 199-205 (2016-04-23)
Iodinated trihalomethanes (I-THMs) are a group of emerging disinfection by-products with high toxicity, and iodide (I(-)) as well as iodinated organic compounds are expected to be their iodine sources. Nevertheless, in this study, iodate (IO3(-)) was proven to be a
Yusen Wu et al.
Scientific reports, 6, 31116-31116 (2016-08-05)
Aroma is an important part of quality in table grape, but the key aroma compounds and the aroma series of table grapes remains unknown. In this paper, we identified 67 aroma compounds in 20 table grape cultivars; 20 in pulp
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