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Showing 1-30 of 47 results for "W273104" within Papers
Luqman Atanda et al.
ChemSusChem, 8(17), 2907-2916 (2015-08-05)
A water-THF biphasic system containing N-methyl-2-pyrrolidone (NMP) was found to enable the efficient synthesis of 5-hydroxymethylfurfural (HMF) from a variety of sugars (simple to complex) using phosphated TiO2 as a catalyst. Fructose and glucose were selectively converted to HMF resulting
H J Shim et al.
Journal of chromatography. B, Biomedical applications, 656(2), 407-414 (1994-06-17)
A high-performance liquid chromatographic method was developed for the simultaneous determination of a new anthracycline, DA-125 (I), and its metabolites (M1, M2, M3, and M4) in rat plasma and urine using fluorescein as an internal standard. Compound I, a prodrug
Mao Ting et al.
The Science of the total environment, 390(1), 97-108 (2007-11-03)
Volatile organic compounds (VOCs) in the air of Beijing City were measured at the heights of 8, 32, 140 and 280 m on the Beijing 325 m meteorological tower in autumn 2005. Concentrations of fifty-five compounds were determined by quantitative
David Quesnel et al.
Water research, 39(4), 677-687 (2005-02-15)
An industrial wastewater that was pretreated by an aerobic thermophilic bacterial consortium (THE) was subjected to additional treatability studies by granular activated carbon (GAC) and a conventional activated sludge (CAS). The removal of dissolved organic carbon (DOC) in both systems
Navideh Sadoughi et al.
Journal of agricultural and food chemistry, 63(11), 2877-2885 (2015-02-24)
An optimized method for the quantitation of volatile compounds responsible for off-aromas, such as earthy odors, found in wine and grapes was developed. The method involved a fast and simple headspace solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) for simultaneous determination of
Eric Loeser et al.
Journal of chromatography. A, 1216(15), 3409-3412 (2009-02-25)
It has recently been shown that the use of strong organic solvents as diluent is possible in RPLC, provided that the solvent used as diluent is retained more strongly by the column than the analytes in the sample. In this
Andrew W Owen et al.
Analytica chimica acta, 849, 12-18 (2014-10-11)
A specially designed thermal vaporiser was used with a process mass spectrometer designed for gas analysis to monitor the esterification of butan-1-ol and acetic anhydride. The reaction was conducted at two scales: in a 150 mL flask and a 1L
Yong-Hyun Kim et al.
Journal of separation science, 38(14), 2455-2462 (2015-05-12)
In general, volatile organic compounds in ambient air are quantified by following a well-defined standard calibration procedure using a gas-/liquid-phase standard. If the liquid standard is analyzed by a thermal desorption, the solvent effect is unavoidable through the alteration of
E Euripidou et al.
Emergency medicine journal : EMJ, 21(5), 548-552 (2004-08-31)
The aim of this study is to describe the pattern of ill health after personal incapacitant spray (PIS) exposures reported to the National Poisons Information Service-London (NPIS-L) and the Chemical Incident Response Service and to evaluate the relation between sub-categories
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
Vincent W Chen et al.
Optics express, 22(10), 12316-12326 (2014-06-13)
Cuboid-shaped organic microcavities containing a pyrromethene laser dye and supported upon a photonic crystal have been investigated as an approach to reducing the lasing threshold of the cavities. Multiphoton lithography facilitated fabrication of the cuboid cavities directly on the substrate
Smita Raghuvanshi et al.
Environmental technology, 31(1), 29-40 (2010-03-18)
The present study deals with the biofiltration of methyl isobutyl ketone (MIBK), which is considered to be a highly toxic volatile organic compound. It is released from the paint and petrochemical industries and is one of the major contributors to
David Quesnel et al.
Journal of hazardous materials, 132(2-3), 253-260 (2005-11-24)
Removal rates of acetone and methyl isobutyl ketone (MIBK) were determined singularly and in combination in batch experiments employing an acclimatized activated sludge from a pilot system treating an organic chemical manufacturer industrial wastewater, as well as during the course
Yulia Kaluzhny et al.
Alternatives to laboratory animals : ATLA, 43(2), 101-127 (2015-05-23)
The 7th Amendment to the EU Cosmetics Directive and the EU REACH Regulation have reinforced the need for in vitro ocular test methods. Validated in vitro ocular toxicity tests that can predict the human response to chemicals, cosmetics and other
Peng Wang et al.
ChemSusChem, 5(12), 2390-2396 (2012-11-08)
Pd-doped propyl sulfonic acid-functionalized hollow nanospheres proved to be efficient bifunctionalized catalysts for the one-pot synthesis of methyl isobutyl ketone (MIBK) from acetone and hydrogen in liquid phase. These hollow nanospheres exhibited a higher activity than their bulk mesoporous counterparts
S J Borghoff et al.
Toxicology, 258(2-3), 131-138 (2009-05-12)
Male F-344 rats were administered corn oil (vehicle control), d-limonene (positive control, 300mg/kg), or MIBK (1000mg/kg) and female F-344 rats corn oil (vehicle control) or MIBK for 10 consecutive days by oral gavage. Approximately 24h after the final dose the
Ismail Inci
Biotechnology progress, 23(5), 1171-1179 (2007-09-07)
Equilibrium and kinetic studies for the extraction of succinic acid from aqueous solution with tridodecylamine diluted in MIBK are reported. All measurements were carried out at 298.15 K. The extent to which the organic phase may be loaded with succinic
Shu-Guang Fang et al.
Preparative biochemistry & biotechnology, 40(1), 38-45 (2009-12-22)
Enzymatic hydrolysis of penicillin G for production of 6-amino-penicillanic-acid (6-APA) was achieved by using penicillin G acylase as catalyst in an aqueous-methylisobutyl ketone (MIBK) system. The optimization was carried out and it was found that the best conversion was improved
Danvir Mark C Farnazo et al.
Bioprocess and biosystems engineering, 35(4), 579-590 (2011-10-01)
Biodegradations of methyl ethyl ketone and methyl isobutyl ketone were performed in intermittent biotrickling filter beds (ITBF) operated at two different trickling periods: 12 h/day (ITBF-12) and 30 min/day (ITBF-0.5). Ralstonia sp. MG1 was able to degrade both ketones as
Daekeun Kim et al.
Chemosphere, 64(8), 1362-1368 (2006-02-10)
Single and ternary solute gas phase adsorption isotherms were conducted in this study to evaluate the effectiveness of a simple constant volume method, which was utilized by using Tedlar gas sampling bags as a constant volume batch reactor. For this
Ting-Ke Tseng et al.
Journal of hazardous materials, 122(1-2), 155-160 (2005-05-26)
Catalytic oxidation is one of the cost-effective technologies to solve the troublesome volatile organic compounds. This study treated methyl-isobutyl-ketone (MIBK) by a commercial catalyst, Pt/gamma-Al(2)O(3), in a fixed-bed reactor. The effects of operating factors, such as operating temperature, MIBK concentration
Tomoyuki Yokota et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(47), 14533-14538 (2015-11-11)
We report a fabrication method for flexible and printable thermal sensors based on composites of semicrystalline acrylate polymers and graphite with a high sensitivity of 20 mK and a high-speed response time of less than 100 ms. These devices exhibit
Ginette Truchon et al.
Journal of occupational and environmental hygiene, 3(3), 137-143 (2006-02-09)
Compartmental and physiologically based toxicokinetic modeling coupled with Monte Carlo simulation were used to quantify the impact of biological variability (physiological, biochemical, and anatomic parameters) on the values of a series of bio-indicators of metal and organic industrial chemical exposures.
Serife SaƧmaci et al.
Analytica chimica acta, 623(1), 46-52 (2008-07-10)
A method for speciation, preconcentration and separation of Fe(II) and Fe(III) in different matrices was developed using solvent extraction and flame atomic absorption spectrometry. 4-Acetyl-5-methyl-1-phenyl-1H-pyrazole-3-carboxylic acid (AMPC) was used as a new complexing reagent for Fe(III). The Fe(III)-AMPC complex was
Profile of volatile metabolites in human urine.
A Zlatkis et al.
Clinical chemistry, 17(7), 592-594 (1971-07-01)
Smita Raghuvanshi et al.
Biodegradation, 21(1), 31-42 (2009-06-27)
Methyl iso-butyl ketone (MIBK) is a widely used volatile organic compound (VOC) which is highly toxic in nature and has significant adverse effects on human beings. The present study deals with the removal of MIBK using biodegradation by an acclimated
Catarina L Silva et al.
Talanta, 89, 360-368 (2012-01-31)
A sensitive assay to identify volatile organic metabolites (VOMs) as biomarkers that can accurately diagnose the onset of breast cancer using non-invasively collected clinical specimens is ideal for early detection. Therefore the aim of this study was to establish the
Wilbur Johnson
International journal of toxicology, 23 Suppl 1, 29-57 (2004-05-28)
MIBK (Methyl Isobutyl Ketone) is an aliphatic ketone that functions as both a denaturant and solvent in cosmetic products. Current use in cosmetic products is very limited, but MIBK is reported to be used in one nail correction pen (volume
Alessandra Bendini et al.
International journal of food sciences and nutrition, 66(4), 371-377 (2015-05-23)
The aim of this investigation was to produce an olive oil (OO) naturally enriched with antioxidants, recovering carotenoids, in particular lycopene, using an industrial by-product of tomato seeds and skin. For this purpose, a technological process in a low-scale industrial
Matthew D Stout et al.
Toxicology, 244(2-3), 209-219 (2008-01-08)
Methyl isobutyl ketone (MIBK) is primarily used as a denaturant for rubbing alcohol, as a solvent and in the manufacture of methyl amyl alcohol. Inhalation of vapors is the most likely route of exposure in the work place. In order
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