polycyclic相关论文
The purpose of this study was to investigate the accumulation behavior of two typical PAHs,phenanthrene(PHE) and fluoran......
Synthesis of Phenoxazinone Derivatives and Antiproliferative Activities on Wild-type and Drug-resist
A series of novel phenoxazinone derivatives (1-6) were designed and synthesized for evaluating their antitumor activitie......
A ’H NMR signal shifted drastically to down field (δ - 10.0) at the bay area and in dose proximity to C = O group for ......
In this research,static adsorption of three polycyclic aromatic hydrocarbons(PAHs),naphthalene,acenaphthene,and fluorene......
Optimization of Ultrasonic Extraction and Clean-up Protocol for the Determination of Polycyclic Arom
The procedures of ultrasonic extraction and clean-up were optimized for the determination of polycyclic aromatic hydroca......
Facile synthesis and characterization of a novel thiophene-fused polycyclic aromatics based on pyren
A novel large thiophene-fused polycyclic aromatics 1 based on pyrene 5 has been synthesized,and its structure was confir......
Photocatalytic degradation of phenanthrene on soil surfaces in the presence of nanometer anatase TiO
The effect of nanometer anatase TiO2 was investigated on the photocatalytic degradation of phenanthrene on soil surfaces......
Characterization of Average Molecular Structure of Heavy Oil Fractions by ~1H Nuclear Magnetic Reson
The chemical structure of heavy oil fractions obtained by liquid-solid adsorption chromatography was character-ized by 1......
The development of environmentally friendly solid acid catalysts is a priority task. Highly oxidized activated carbon an......
Synthesis and Crystal Structure of 1,7,8,9-Tetrachloro-4-benzyl-10,10-dimethoxy-4-azatricyclo(5,2,1,
The crystal structure of 1,7,8,9-tetrachloro-4-benzyl-10,10-dimethoxy-4-azatricyclo-(5,2,1,02,6)dec-8-ene-3,5-dione (C18......
The relationship between chemical structures and biodegradation rates (k b) of 22 polycyclic aromatic hydrocarbons (PAHs......
Direct Fingerprinting Polycyclic Aromatic Hydrocarbons in Heavy Oils by PY-GC/MS and Its Application
An efficient analytical method combining pyrolysis and capillary GC/MS has been developed for determination and quantita......
Quantification of selected monohydroxy metabolites of polycyclic aromatic hydrocarbons in human urin
An analytical method was developed to quantitatively determine selected monohydroxy metabolites of polycyclic aromatic h......
In this talk,we present our recent studies on newly discovered polycyclic aromatic hydrocarbon(PAH)superconductors inclu......
An expedient,synthetic method to fused polycyclic derivatives of isoquinoline is described via tandem reaction of isoqui......
Theoretical insights into the [4+2]/retro [4+2] cycloaddition approach to the synthesis of biaryls a
A domino [4+2]/retro [4+2] cycloaddition process of cyclohexadienes with arylethynes or benzyne providing access to biar......
Iron-catalyzed synthesis of polycyclic-fused azo[l,2-a]indolones via an S_NAr/acylation cascade reac
An efficient method has been developed for the cascade synthesis of azo[1,2-a]indolones from azoles and2-fluoroaldehydes......
Crystal structure determination of three polycyclic compounds and comparative Rietveld refinement be
The crystal structures of normethisterone, gestonoronacetat, and griseofulvin were directly determined from the X-ray po......
Electro-oxidation of phenylamine derivatives(1a and 1b) have been studied in the presence of pyrazolidine-3,5-dione(3) a......
Construction of polycyclic spirooxindoles through [3+2] annulations of Morita–Baylis–Hillman carbona
A mild and efficient dearomatic [3+2] annulation reaction of 3-nitro-7-azaindoles and Morita Baylis Hillman carbonates f......
化学分析经常需要大量时间和贵重设备,更不要说那些刺激性的溶剂了。但是现在咖啡机就可以轻松完成这些分析。研究者利用现成的台......
The tectonic movement taking place at the end of Cretaceous and the beginning of Cenozoic had opened the Cenozoic phase ......
Toward a unified model of Altaids geodynamics:Insight from the Palaeozoic polycyclic evolution of We
The Altaid tectonic collage extends over Central Asia, exposing numerous accretionary orogens that can account for the P......
Diameter frequency distribution in a specific stand provides basic information for forest resources management.In this s......
Cloud point extraction (CPE) processes with two silicone surfactants, Dow Corning DC-190 and DC-193, were studied as pre......
The individual particles collected from a power station were analyzed by time of flight secondary ion mass spectrometry ......
Naphthalene and phenol degradation by Flavobacterium sp. DQ398100 and Pseudomonas putida, DQ399838 i
The solubilization and degradation of polycyclic aromatic hydrocarbons (PAHs) in soil was amending by many microorganism......
Polycyclic aromatic hydrocarbons (PAHs) air contamination is an increasing worldwide ongoing burning problem. In this re......
Combining hydropyrolysis and compound specific stable isotope measurements to identify sources of bi
Compound-specific 13C/12C isotope ratio measurements have successfully been demonstrated as a valuable technique for pol......
The nearshore mud area along the Changjiang (Yangtze River) estuary and the coast of Zhejiang and Fujian provinces, and ......
The characteristics of minerals in civil coal and its combustion products in Xuanwei County, Yunnan,
Background:The combustion of bituminous coal resulted in the high incidence of lung cancer of peasants in Xuanwei and Fu......
Heavy metals (HMs) and polycyclic aromatic hydrocarbons (PAHs) are two sorts of important pollutants, which were frequen......
The estuarine and coastal systems play an important role in sedimentary deposition which acts as a sink of particle-asso......
Polycyclic aromatic hydrocarbons(PAHs)in indoor dust are one of the common exposure sources for children worldwide.The a......
The existing soot models are either too complex and can not be applied to the internal combustion engine, or too simple ......
Adverse effects on the environment and high persistence in the microbial degradation and environmental fate of polycycli......
Concentration level and distribution of polycyclic aromatic hydrocarbons in soil and grass around Mt
High mountains may serve as a condenser for persistent organic pollutants. In the present study, soil and grass samples ......
Heavy metals,polycyclic aromatic hydrocarbons and organochlorine pesticides in the surface sediments
Contents of heavy metals,polycyclic aromatic hydrocarbons (PAHs),dichlorodiphenyltrichloroethanes (DDTs) and hexachlorcy......
Environmental records of snow pits in Yuzhufeng Glacier and Xiao Dongkemadi Glacier in the Tibetan P
The contents and distribution characteristics of ions, n-alkanes, and polycyclic aromatic hydrocarbons in snow pits on t......
Twenty snow samples were collected from the Qiyi glacier in Qilian Mountains,the Yuzhufeng glacier in eastern Kunlun Mou......
QUANTITATIVE APPLICATION OF RESONANCE THEORY ON EXCITED STATE BEHAVIOURS AND ITS CONSISTENCY WITH MO
Rcsonance theory, the graphic language of valence bond theory, has been applied quantitatively and successfully to a se......
UV-A Coexposure Enhances the Toxicity of AromaticHydrocarbons, Munitions, and Metals to Photobacteri
Johnson et al. (1993) showed that coexposure to UV-A between 300-400 nm enhanced the toxicity of nitrotoluenes to Phoiob......
Distribution and sources of polycyclic aromatic hydrocarbons in main aquacultural areas in Guangdong
The environmental quality status of Daya Bay (22.56–22.77°N, 114.51–114.73°E), a main aquaculture area in Guangdong ......
This study examined the concentrations of polycyclic aromatic hydrocarbons (PAHs) in surface sediments collected in July......
Subsidence history and forming mechanism of anomalous tectonic subsidence in the Bozhong depression,
The Bozhong depression of the Bohaiwan basin belongs to a family of extensional basins in East China, but is quite diffe......
The present study deals with the study of some Friedel-Crafts alkylating system and the accurate measurement of hyperfi......
Codonopiloneolignanin A, a polycyclic neolignan with a new carbon skeleton from the roots of Codonop
A neolignan codonopiloneolignanin A(1) with a novel 2,9:20,9:7,70-tricyclo-8,90-neolignane skeleton was isolated from an......
The petroleum acids in crude oil were separated by extraction with column chromatogram and anion exchange resin. The sep......
Asymmetric intramolecular cyclopropanation of allylic diazoacetate was investigated using a chiral (β-diketone)-copper ......
Rhodium-catalyzed Asymmetric Ring Opening Reaction of Oxabenzo-norbornadiene with Substituted Phenol
We have developed an asymmetric ring opening reaction of oxabenzonorbornadienes with substituted phenolic nucleophiles. ......
