搜索结果: 1-15 共查到“工学 hydrocarbons”相关记录36条 . 查询时间(0.296 秒)
Preparation of rosin-based polymer microspheres as a stationary phase in high-performance liquid chromatography to separate polycyclic aromatic hydrocarbons and alkaloids
rosin-based stationary phase alkaloids polycyclic aromatic hydrocarbons polymer microspheres
2024/3/8
Acrylpimaric acid ethylene glycol acrylate was used as the cross-linking agent to prepare rosin-based polymer microspheres through membrane emulsification-microsuspension polymerization. The prepared ...
FLUORESCENT ANALYSIS OF PHOTOSYNTHETIC MICROBES AND POLYCYCLIC AROMATIC HYDROCARBONS LINKED TO OPTICAL REMOTE SENSING
Fluorescence Excitation-Emission Matrix Cyanobacteria Crude oil, PAHs
2014/4/30
Fluorescence analysis, being a non-invasive technique, has become one of the most powerful and widely used techniques for microbiologists and chemists to study various types of sample from photosynthe...
Non-methane Hydrocarbons and Their Ozone Formation Potentials in Foshan, China
Non-methane hydrocarbons Vehicular emission Solvent evaporation Ozone formation potential Foshan
2016/3/25
Concentrations of non-methane hydrocarbons (NMHCs) were measured to investigate their temporal variations and
major sources, and to explore the ozone formation potentials (OFP) of each NMHCs for the ...
Sources of Polycyclic Aromatic Hydrocarbons in Street Dust from the Chang-Zhu-Tan Region, Hunan, China
Street Dust Polycclic Aromatic Hydrocarbons Rare Earth Element Sources of Pollution
2013/3/13
Street dusts collected from 20 sites as well as three special dust samples collected from chimney of coal-fired plant, smelter and refinery of nonferrous metals and automobile exhaust, respectively, i...
Variability in Road Runoff Pollution by Polycyclic Aromatic Hydrocarbons (PAHs) in the Urbanized Area Adjacent to Biscayne Bay, Florida
PAHs Storm-Event Mass First Flush Seasonal Variability Annual Average Daily Traffic
2013/3/13
Polycyclic aromatic hydrocarbons (PAHs) were consistently documented in the sediments of the canals draining into Biscayne Bay. The study examines the contribution of urban runoff to PAHs discharges. ...
Proximal Input of Polynuclear Aromatic Hydrocarbons (PAHs) in Groundwater Sources of Okrika Mainland, Nigeria
Carcinogenic Polynuclear Aromatic Hydrocarbons Groundwater Gas Chromatography Okrikamainland
2013/3/12
The Port Harcourt Refinery Company situated at Okrika Mainland discharges its effluent into the Creeks surrounding this coastal land. The current study examined the presence of polynuclear aromatic hy...
High-Precision GC-MS Analysis of Atmospheric Polycyclic Aromatic Hydrocarbons (PAHs) and Isomer Ratios from Biomass Burning Emissions
Agricultural-Waste Burning PAHs Accelerated Solvent Extraction GC-MS
2013/3/12
This manuscript describes an analytical method for the quantitative determination of 16-polycyclic aromatic hydrocarbons (PAHs) using accelerated solvent extraction (ASE), followed by purification on ...
Contributions of Biogenic and Anthropogenic Hydrocarbons to Secondary Organic Aerosol during 2006 in Research Triangle Park, NC
Secondary organic aerosol Organic Carbon PM2.5
2016/3/28
A recently developed, organic tracer-based method was used to estimate the secondary contributions of biogenic and
anthropogenic precursor hydrocarbons to ambient organic carbon concentrations in PM2...
Potential Approaches to Improving Biodegradation of Hydrocarbons for Bioremediation of Crude Oil Pollution
Biodegradation Bioremediation Crude Oil Hydrocarbon Nutrient Balance Oxygen
2013/3/12
With increasing demands of fossil fuel energy, extensive exploration of natural sources has caused a number of large scale accidental spills of crude oil and resulted in some significantly environment...
IMPACTS OF CRAB BIOTURBATION ON THE FATE OF POLYCYCLIC AROMATIC HYDROCARBONS IN SEDIMENT FROM THE BEITANG ESTUARY OF TIANJIN, CHINA
IMPACTS HE BEITANG ESTUARY OF TIANJIN
2013/12/12
Bioturbation by the burrowing crab Helice tiensinensis was investigated to determine its impact on polycyclic aromatichydrocarbon (PAH)-contaminated estuarine sediments. The concentrations of 16 U.S. ...
Desorption of polycyclic aromatic hydrocarbons from aged and unaged charcoals with and without modification of humic acids
Desorption Charcoal PAHs Aging
2013/12/12
Desorption of pyrene and phenanthrene, from two charcoals and humic acid preloaded charcoals werestudied. Desorption occurred obviously in two fractions, with rapid and slow desorption rate constantra...
Long-term, low temperature simulation of early diagenetic alterations of organic matter from conifers: Aliphatic hydrocarbons
coniferous organic matter early diagenetic alternations alphatic hydrocarbons inorganic environment
2017/8/9
Early diagenetic alterations of organic matter from conifers were simulated at low temperature of 80°C for five and a half years. Their diagenetic products of aliphatic hydrocarbons were identified an...
A comparative experimental study on gas generation from saturated and aromatic hydrocarbons isolated from a Cambrian oil in Tarim basin
oil cracking saturates aromatics pyrolysis experiment natural gas carbon isotopes
2017/8/9
The saturated and aromatic hydrocarbons isolated from a Cambrian oil (TZ62well) in the central Tarim basin were pyrolyzed in sealed gold tubes to investigate how the gases generated from them would va...
Characterization and Source Identification of PM10-bound Polycyclic Aromatic Hydrocarbons in Urban Air of Tianjin, China
PAHs PM10 Diagnostic ratios PCA Sources
2016/3/29
PM10 samples were collected at six sampling sites in city center of Tianjin from April 2008 to January 2009. The
concentrations of 17 selected polycyclic aromatic hydrocarbons (PAHs) in PM10 were qua...
水泵橡胶密封件中多环芳烃的研究（Study on Polycyclic Aromatic Hydrocarbons in Pump Rubber Seals）
多环芳烃 水泵 橡胶密封件
2009/12/28
简要分析了多环芳烃(PAHs)的危害及水泵橡胶密封件中PAHs的来源，首次采用了水泵密封件中多环芳烃的超声萃取气相色谱-质谱(GC-MS)联用的测定方法。优化了超声萃取条件，确定了16种PAHs的分离和测定条件。样品经过超声波萃取，采用选择离子监测模(SIM)定性和定量检测水泵密封件中多环芳烃，用内标法对PAHs进行定量分析。用加标回收方法试验确定方法的准确度。结果表明：16种PAHs平均回收率为...