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Showing 1-30 of 37 results for "89353" within Papers
Mihir Tanay Das et al.
Environmental pollution (Barking, Essex : 1987), 189, 118-125 (2014-03-25)
An indirect estimation method was followed to derive exposure levels of fifteen phthalate congeners in urban population of Delhi, India. The exposure media samples were collected from Jawaharlal Nehru University (JNU) campus and Okhla industrial area. GC-MS analysis of the
Wenchao Liao et al.
Journal of environmental sciences (China), 22(11), 1800-1806 (2011-01-18)
A highly active ZrO(x)/ZnO catalyst for microwave-assisted photocatalytic (MW/PC) degradation of endocrine disruptor dimethyl phthalate (DMP) has been prepared via cetyltrimethylammonium assisted hydrothermal method. The ZrO(x)/ZnO was characterized by XPS, XRD, UV-Vis, BET and SEM techniques. The XPS result showed
Riyan Su et al.
Analytica chimica acta, 676(1-2), 103-108 (2010-08-31)
A simple, sensitive, and rapid strategy has been reported in this work which is based on polymer monolith microextraction (PMME) and high performance liquid chromatography (HPLC) for the determination of phthalate esters in cosmetics. A poly(methacrylic acid-co-ethylene glycol dimethacrylate) (MAA-EGDMA)
Zuriñe Abrego et al.
The Analyst, 139(23), 6232-6241 (2014-10-11)
A method based on scanning laser ablation and inductively coupled plasma-mass spectrometry (SLA-ICPMS) and Raman micro-spectroscopy for the detection and identification of compounds consistent with gunshot residue particles (GSR) has been developed. The method has been applied to the characterization
Guy Bouchoux et al.
The journal of physical chemistry. A, 114(27), 7408-7416 (2010-06-22)
Aromatic substitution reactions of selected ionized benzenes derivatives (chlorobenzene, nitrobenzene, dimethylphtalates) and phenoxy cation using neutral methyl isocyanide as a nucleophile are shown to efficiently occur in the gas phase. Nitrilium ions are produced in high abundance during these processes.
Zhu-Hua Luo et al.
Environmental science and pollution research international, 18(9), 1653-1660 (2011-06-01)
Dimethyl phthalate esters (DMPEs) are a group of plasticizers commonly detected in the environment with potential adverse human health impact. The degradation of DMPEs by fungal systems has been studied to a limited extent, particularly by yeasts. In this study
Mir Ali Farajzadeh et al.
Journal of chromatography. A, 1379, 24-33 (2015-01-04)
In this study, for the first time, a dispersive liquid-liquid microextraction technique using a ternary solvent mixture is reported. In order to extract five phthalate esters and di(2-ethylhexyl) adipate with different polarities from aqueous samples, a simplex centroid experimental design
T Fierens et al.
Environment international, 51, 1-7 (2012-11-10)
This survey determined the levels of eight phthalates - i.e. dimethyl phthalate (DMP), diethyl phthalate (DEP), diisobutyl phthalate (DiBP), di-n-butyl phthalate (DnBP), benzylbutyl phthalate (BzBP), di(2-ethylhexyl) phthalate (DEHP), dicyclohexyl phthalate (DCHP) and di-n-octyl phthalate (DnOP) - in several Belgian milk
Zhujian Huang et al.
Journal of hazardous materials, 246-247, 70-78 (2013-01-05)
The organic layered double hydroxides (LHDs)/TiO(2) composites with various mass ratios were prepared by the reconstruction of mixed metal oxides to photodegrade dimethyl phthalate (DMP). The physicochemical properties of the obtained products were analyzed by X-ray diffraction (XRD) spectra, X-ray
Yuan Jing et al.
Journal of hazardous materials, 189(1-2), 40-47 (2011-03-08)
TiO(2) was prepared by a hydrothermal method at a low temperature and used to degrade and mineralize dimethyl phthalate (DMP). TiO(2) was characterized by XRD, TEM, BET and UV-vis techniques. The characteristics of TiO(2) prepared by a hydrothermal method (h-t
Xianghua Zheng et al.
Se pu = Chinese journal of chromatography, 30(1), 27-32 (2012-06-07)
A method for the simultaneous determination of 23 phthalate esters in food samples by solid-phase extraction coupled with gas chromatography-mass spectrometry (SPE-GC-MS) was developed and evaluated. The samples were extracted with hexane or acetonitrile, and cleaned up with a glass
Fernanda L Souza et al.
Chemosphere, 109, 187-194 (2014-03-13)
The electrooxidation of the dimethyl phthalate (DMP) ester was galvanostatically carried out in a filter-press reactor using a fluoride-doped lead dioxide (β-PbO2,F) film electrodeposited on a Ti substrate. The variables investigated were the nature of the supporting electrolyte (NaCl and
Kun-Lin Li et al.
Huan jing ke xue= Huanjing kexue, 31(9), 2075-2079 (2010-11-16)
In this study the new catalyst Si-FeOOH was synthesized by adding Si to the traditional FeOOH and the mechanic strength of this new catalyst could be enhanced greatly. The photo-degradation of dimethyl phthalate (DMP) by UV/Si-FeOOH/H2O2 was investigated. The new
Yi-Hung Chen et al.
Journal of hazardous materials, 192(3), 1017-1025 (2011-07-05)
The removal of dimethyl phthalate (DMP), which is a pollutant of concern in water environments, was carried out by catalytic ozonation with TiO(2)/Al(2)O(3) catalysts. The heterogeneous catalytic ozonation was an ozonation process combined with the catalytic and adsorptive properties of
T Fierens et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 50(12), 4428-4435 (2012-09-19)
Food products can be contaminated with toxic compounds via the environment. Another possibility of food contamination is that toxicants are generated in foods or that chemicals migrate from food contact materials into foods during processing. In this study, the effect
Hiroshi Toda et al.
Applied and environmental microbiology, 81(6), 1919-1925 (2015-01-04)
We describe the development of biocatalysis for producing optically pure straight-chain (S)-epoxyalkanes using styrene monooxygenase of Rhodococcus sp. strain ST-10 (RhSMO). RhSMO was expressed in the organic solvent-tolerant microorganism Kocuria rhizophila DC2201, and the bioconversion reaction was performed in an
Elijah J Petersen et al.
Environmental toxicology and chemistry, 30(4), 988-996 (2011-02-11)
The effects of loading and aging pyrene in soils in the presence of four environmentally common nonaqueous-phase liquids (NAPLs) (hexadecane, 2,2,4,4,6,8,8-heptamethylnonane [HMN], toluene, and dimethyl phthalate [DMP]) on its subsequent desorption from those soils, earthworm accumulation, biodegradation, and extractability were
L J Xu et al.
Water research, 47(6), 1996-2004 (2013-02-12)
The merits of the combined process of high-frequency ultrasound (US) and catalyst-free ultraviolet irradiation (UV) have been evaluated in this study by investigating the sonophotolytic degradation of dimethyl phthalate (DMP). A 400 kHz ultrasonic system and a photolytic system at
M Clara et al.
Chemosphere, 78(9), 1078-1084 (2010-01-26)
Dimethyl phthalate, diethyl phthalate, dibuthyl phthalate, butylbenzyl phthalate, bis(2-ethylbenzyl) phthalate (DEHP) and dioctyl phthalate were analysed in raw and treated wastewater as well as in surface runoff samples from traffic roads. All six investigated phthalates have been detected in all
J I Cacho et al.
Journal of chromatography. A, 1380, 156-161 (2015-01-15)
A method using direct sample introduction (DSI) coupled to gas chromatography-mass spectrometry (GC-MS) is developed for the determination of six phthalate esters (dimethyl, diethyl, dibutyl, butylbenzyl, diethylhexyl and dioctyl phthalate) in cleaning products. The different variables involved in the DSI
L J Xu et al.
Ultrasonics sonochemistry, 20(3), 892-899 (2012-12-05)
A comprehensive study of the sonochemical degradation of dimethyl phthalate (DMP) was carried out using high-frequency ultrasonic processes. The effects of various operating parameters were investigated, including ultrasonic frequency, power density, initial DMP concentration, solution pH and the presence of
Yuwei Ma et al.
Journal of separation science, 33(2), 251-257 (2009-12-10)
In this study, a simple, rapid and sensitive method for the determination of five phthalates including dimethyl phthalate, diethyl phthalate, dipropyl phthalate, benzyl butyl phthalate, and dicyclohexyl phthalate in fruit jellies by LC coupled with MS has been developed. Samples
Jin Zhou et al.
PloS one, 6(10), e25951-e25951 (2011-10-27)
Di-methyl phthalate (DMP), a typical endocrine disrupting chemical (EDC), is ubiquitously distributed in aquatic environments; yet studies regarding its impact on gametes and the resulting effects on embryogenesis in marine gastropods are relatively scarce. In this study, the influences of
Yiling Chen et al.
Journal of hazardous materials, 235-236, 92-100 (2012-08-14)
In this study, we demonstrate that the decomposition of dimethyl phthalate under microwave irradiation could be greatly enhanced over Fe@Fe(2)O(3) nanowires supported on activated carbon (Fe@Fe(2)O(3)/AC). The great enhanced decomposition of dimethyl phthalate could be attributed to a unique microwave
Wenlan Song et al.
Journal of chromatography. A, 1384, 28-36 (2015-02-11)
A novel zinc-zinc oxide (Zn-ZnO) nanosheets coating was directly fabricated on an etched stainless steel wire substrate as solid-phase microextraction (SPME) fiber via previous electrodeposition of robust Zn coating. The scanning electron micrograph of the Zn-ZnO nanosheets coated fiber exhibits
Wenxin Wang et al.
Environmental monitoring and assessment, 184(11), 6789-6798 (2011-12-08)
Atmospheric trace phthalic esters (PAEs) carried by total suspended particulates were systematically investigated. A total of 450 air samples were collected at six typical locations and three specific micro-environmental sites (a stadium with a new plastic track, new cars, and
Mingcui Zhang et al.
Applied biochemistry and biotechnology, 166(2), 436-445 (2011-11-15)
Recent controversy over the discovery of clouding agents containing the banned chemical di(2-ethylhexyl) phthalate in beverages in 2011 in Taiwan has caused public concerns. For the detection of dimethyl phthalate (DMP) in environment water samples, an indirect competitive enzyme-linked immunosorbent
Munjed A Maraqa et al.
Journal of contaminant hydrology, 125(1-4), 57-69 (2011-05-31)
Sorption of dimethyl phthalate (DMP), diethyl phthalate (DEP) and dipropyl phthalate (DPP) to two soil materials that vary in organic matter content was investigated using miscible displacement experiments under saturated flow conditions. Generated breakthrough curves (BTCs) were inversely simulated using
Yining Hou et al.
Journal of environmental sciences (China), 21(10), 1321-1328 (2009-12-17)
The anodic oxidation of aqueous solutions containing dimethyl phthalate (DMP) up to 125 mg/L with sodium sulfate (Na2SO4) as supporting electrolyte within the pH range 2.0-10.0 was studied using a one-compartment batch reactor employing a boron-doped diamond (BDD) as anode.
Xing-hui Xia et al.
Huan jing ke xue= Huanjing kexue, 31(4), 969-975 (2010-06-10)
Irreversible sorption behavior of two phthalate acid esters (PAEs), Dimethyl phthalate (DMP) and Di-(2-ethyl-hexyl) phthalate (DEHP), on four natural sediment samples from the Yangtze River and the Yellow River has been studied by equilibrium sorption and multiple cycles of adsorption/desorption
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