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Showing 1-30 of 54 results for "105953" within Papers
M Concetta Tomei et al.
Biotechnology letters, 34(11), 2037-2042 (2012-07-26)
Used automobile tire pieces were tested for their suitability as the sequestering phase in a two-phase partitioning bioreactor to treat 2,4-dichlorophenol (DCP). Abiotic sorption tests and equilibrium partitioning tests confirmed that tire "crumble" possesses very favourable properties for this application
Stéphanie Romand et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 63, 14-21 (2014-07-06)
A capillary isoelectric focusing (cIEF) method was developed for the determination of the ionization constants (pKa) of small molecules. Two approaches used to decrease the electroosmotic flow (EOF) were compared: (i) a hydroxypropylcellulose (HPC) coated capillary in aqueous medium and
Danielle E Buttke et al.
Environmental health perspectives, 120(11), 1613-1618 (2012-11-06)
The observed age of menarche has fallen, which may have important adverse social and health consequences. Increased exposure to endocrine-disrupting compounds (EDCs) has been associated with adverse reproductive outcomes. Our objective was to assess the relationship between EDC exposure and
M Muñoz et al.
Chemosphere, 110, 129-135 (2014-03-19)
Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/F) formation was studied, in vitro, with two different chlorophenol mixtures (group "di+tri" 2,4-dichlorophenol; 2,3,4-, 2,3,5-, and 3,4,5-trichlorophenols and group "tri+tetra+penta" with 2,4,5-trichlorophenol, 2,3,4,6-tetrachlorophenol and pentachlorophenol) and two different lignolytic enzymes, lignin and manganese peroxidase
Sheng-Xiang Gong et al.
Journal of chromatography. A, 1401, 17-23 (2015-05-23)
The high performance separation and enrichment of polar phenols from aqueous matrices is often difficult due to the strong interactions between phenols and water. In this paper, carboxylated solid carbon spheres (SCSs-COOH) were, for the first time, used as a
Guang-Ming Zeng et al.
Environmental science & technology, 46(14), 7818-7825 (2012-06-19)
The white-rot fungus Phanerochaete chrysosporium has been widely used for the treatment of waste streams containing heavy metals and toxic organic pollutants. The development of fungal-based treatment technologies requires detailed knowledge of the relationship between bulk water quality and the
Renato Montenegro-Ayo et al.
Chemosphere, 268, 129320-129320 (2020-12-29)
Photoelectrocatalytic (PEC) water treatment is a promising technology for organic pollution abatement. Much of the prior research focused on material discovery and optimization. However, challenges exist in scaling-up PEC processes and are associated with designing reactors with effective light irradiation
Xiaoyun Ye et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 831(1-2), 110-115 (2005-12-27)
Breast milk is one possible route of exposure to environmental chemicals, including phenols and chlorinated organic chemicals for breast-fed infants. We developed a highly sensitive method of analyzing breast milk for triclocarban (3,4,4'-trichlorocarbanilide) and eight phenolic compounds: bisphenol A (BPA)
Erchao Li et al.
Aquatic toxicology (Amsterdam, Netherlands), 201, 66-72 (2018-06-08)
Phenols are classified as polar narcotics, which are thought to cause toxicity by non-specific mechanisms, possibly by disrupting membrane structure and function. Here we test three phenolic chemicals, phenol, 2,4-dichlorphenol and pentachlorophenol on embryo development, heartbeat rate and mitochondrial respiration
Dandan Ge et al.
Talanta, 132, 132-136 (2014-12-06)
An ultra-hydrophobic ionic liquid, 1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate ([HMIM][FAP]) was immobilized in the pores of a polypropylene hollow fiber for liquid-liquid-liquid microextraction (HF-LLLME) of chlorophenols (CPs) (4-chloro-3-methylphenol, 2,4-dichlorophenol and 2,4,6-trichlorophenol). The analytes were first extracted from 10 ml of water sample into
Diana C Botía et al.
Chemosphere, 89(6), 732-736 (2012-07-24)
This paper presents an exploratory study of pulp mill bleaching effluent treatment by a biological-photocatalytic coupled system. A fungus, Trametes pubescens, immobilized on polyurethane foam was used to inoculate the biological pre-treatment system. The pretreated effluent was then exposed to
Yungui Li et al.
Journal of environmental sciences (China), 24(4), 675-681 (2012-08-17)
To better understand the interaction mechanisms of plant surfaces with polar organic compounds, sorption of 4-chlorophenol, 2,4-dichlorophenol, and 2,4,6-trichlorophenol by fruit cuticles (i.e., tomato, apple, and pepper), and potato tuber periderm were investigated. The roles of cuticular components (waxes, cutin
Charline Corre et al.
Environmental technology, 33(13-15), 1671-1676 (2012-09-20)
During biological degradation, such as biofiltration of air loaded with volatile organic compounds, the pollutant is passed through a bed packed with a solid medium acting as a biofilm support. To improve microorganism nutritional equilibrium and hence to enhance the
Mir Mahdi Abolghasemi et al.
Journal of separation science, 38(7), 1187-1193 (2015-02-04)
A metal-organic framework/periodic mesoporous silica (MOF-5@SBA-15) hybrid material has been prepared by using SBA-15 as a matrix. The prepared MOF-5@SBA-15 hybrid material was then deposited on a stainless-steel wire to obtain the fiber for the solid-phase microextraction of phenolic compounds.
Santiago Gómez-Quero et al.
Nanotechnology, 23(29), 294002-294002 (2012-06-30)
Catalytic hydrodechlorination (HDC) is an effective means of detoxifying chlorinated waste. Gold nanoparticles supported on Fe(3)O(4) have been tested in the gas phase (1 atm, 423 K) HDC of 2,4-dichlorophenol. Two 1% w/w supported gold catalysts have been prepared by:
Liqun Xing et al.
Journal of environmental monitoring : JEM, 14(6), 1677-1683 (2012-05-24)
The toxicity of single and combined mixtures of 2,4-dichlorophenol (2,4-DCP), 2,4,6-trichlorophenol (2,4,6-TCP), and pentachlorophenol (PCP) to Daphnia magna was studied. The toxicity ranking of these three single chlorophenols (CPs) to Daphnia magna was PCP > 2,4-DCP > 2,4,6-TCP. The toxic
Hui Li et al.
Aquatic toxicology (Amsterdam, Netherlands), 140-141, 117-122 (2013-06-19)
2,4-Dichlorophenol (2,4-DCP), a major type of chlorophenols, has been widely used to produce some herbicides and pharmaceuticals, yet due to its incomplete degradation and bioaccumulation characteristics, it is toxic to aquatic organisms. Apoptosis is one of the most severe outcomes
Xijuan Chen et al.
The Science of the total environment, 505, 39-46 (2014-10-13)
Aerobic degradation experiments of Triclosan were performed in activated sludge to identify possible transformation products for this compound. During 7 days, the formation of biotransformation products such as 2,4-Dichlorophenol, 4-Chlorocatechol, 5-Hydroxy-Triclosan and other Monohydroxy-Triclosan derivatives as well as Dihydroxy-Triclosan-derivatives were
Hongwei Qin et al.
Analytical biochemistry, 462, 60-66 (2014-06-29)
An in situ electrochemical method was used to assess the cytotoxicity of chlorophenols using human breast cancer (MCF-7) and cervical carcinoma (HeLa) cells as models. On treatment with different chlorophenols, the electrochemical responses of the selected cells, resulting from the
Juan Zheng et al.
Analytica chimica acta, 884, 44-51 (2015-06-16)
The monodisperse microporous carbon nanospheres (MMCNSs) were applied in solid phase microextraction for the first time. The MMCNSs-fiber was prepared by sol-gel technique and good repeatability and reproducibility were obtained, due to the excellent monodispersity of the MMCNSs. The sol-gel-MMCNSs
Shu-Ling Lin et al.
Analytica chimica acta, 871, 57-65 (2015-04-08)
In this study, methacrylic acid (MAA) was incorporated with alkyl methacrylates to increase the hydrophilicity of the synthesized ethylene dimethacrylate-based (EDMA-based) monoliths for separating polar small molecules by capillary LC analysis. Different alkyl methacrylate-MAA ratios were investigated to prepare a
Ying Wang et al.
Environmental science and pollution research international, 20(9), 6222-6231 (2013-04-17)
Magnetic Cu(2+)-chelated silica particles that employ polyacrylamide as a metal-chelating ligand were developed and used to immobilize laccase by coordination. The particles were characterized by scanning electron microscope and Fourier transform infrared spectroscopy. The preparation, the enzymatic properties of the
Ahmet Çabuk et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 47(12), 1938-1947 (2012-07-05)
Chlorinated compounds constitute an important class of xenobiotics. Crude laccase was produced using Trametes versicolor ATCC (200801) in potato dextrose broth, with wheat bran as an inducing medium, and its ability to dechlorinate eight compounds was determined. The compounds were
Heyun Fu et al.
Environmental science & technology, 52(18), 10453-10461 (2018-08-11)
Vegetation fire generates vast amounts of mineral ash annually that can be readily mobilized by water or wind erosion. Little is known about the photoactivity of dissolved mineral ash in aquatic systems and its ability to mediate redox reactions of
M A Crespín et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 773(2), 89-96 (2002-05-29)
A rapid flow system for automatic sample conditioning for the determination of phenol compounds in human urine has been developed and optimised. Free phenols are detected directly in urine samples while total phenols require acid hydrolysis to convert their conjugate
Praveena Juliya Dorathi et al.
Journal of environmental sciences (China), 24(4), 765-773 (2012-08-17)
Laboratory studies were conducted to find out the efficacy of uniquely prepared zero valent iron impregnated silica in transforming xenobiotic chlorophenols namely 4-chlorophenol, 2,4-dichlorophenol and 2,4,6-trichlorophenol. Continuous mode column experiments were performed to investigate the transformation of chlorophenols by varying
Dalho Kim et al.
Analytical and bioanalytical chemistry, 405(1), 377-387 (2012-10-23)
A method using on-line solid-phase microextraction (SPME) on a carbowax-templated fiber followed by liquid chromatography (LC) with ultraviolet (UV) detection was developed for the determination of triclosan in environmental water samples. Along with triclosan, other selected phenolic compounds, bisphenol A
Yu Zhang et al.
Huan jing ke xue= Huanjing kexue, 33(4), 1247-1251 (2012-06-23)
Hematite was used as the catalyst to degrade the rhodamine B and 2,4-dichlorophenol under visible light irradiation. The effect of pH, catalyst dosage and dissolved iron on the degradation efficiency were studied. UV-Vis spectrophotometer, infrared spectrometer, fluorescence spectrophotometry and the
K Valli et al.
Journal of bacteriology, 173(1), 345-352 (1991-01-01)
Under secondary metabolic conditions the white rot basidiomycete Phanerochaete chrysosporium mineralizes 2,4-dichlorophenol (I). The pathway for the degradation of 2,4-dichlorophenol (I) was elucidated by the characterization of fungal metabolites and of oxidation products generated by purified lignin peroxidase and manganese
Wenqiang Zhou et al.
Chemosphere, 90(2), 527-534 (2012-09-12)
Concerns on the potential risks of engineered nanoparticles to the environment are increasing; however, little is known about the effects of carbon nanotubes (CNTs) on the environmental fate of hydrophobic organic pollutants in soil. We incubated radioactive labeled 2,4-dichlorophenol ((14)C-2,4-DCP)
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