搜索结果: 1-13 共查到“理学 chemicals”相关记录13条 . 查询时间(0.075 秒)
Persistent Organic Pollutants (POPs),Polycyclic Aromatic Hydrocarbons (PAHs),and Plastics:Examples of the Status, Trend,and Cycling of Organic Chemicals of Environmental Concern in the Ocean
Persistent Organic Pollutants (POPs) Polycyclic Aromatic Hydrocarbons (PAHs) Plastics:Examples of the Status Trend Cycling Organic Chemicals Environmental Concern in the Ocean
2015/7/17
Four decades of research have provided a reasonable understanding of the outline of the biogeochemical cycles of persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) in coa...
Organic Chemicals of Environmental Concern:Water Sampling and Analytical Challenges
Organic Chemicals Environmental Concern Water Sampling Analytical Challenges
2015/7/17
A detailed understanding of the biogeochemical cycles of organic chemicals of environmental concern (OCEC) in the ocean requires measurement of their concentrations in the water column (Farrington and...
Chemists from around the world form new center to reinvent how chemicals are made
around the world new center chemicals are made
2014/12/30
Up until now, chemists who want to design breakthrough drugs, formulate better agrichemicals and develop new smart materials have designed their products using long-established laboratory methods. But...
A Test of the Hypothesis That Environmental Chemicals Interfere With Thyroid Hormone Action in Human Placenta
endocrine disruption thyroid hormone placenta cyp1a1
2014/12/12
Thyroid hormone is essential for normal brain development and recognition of this has led to universal screening of newborns for thyroid function to ensure that circulating levels of thyroid hormone a...
Sometimes solving a problem doesn’t require a high-tech solution. Sometimes, you have to look no farther than your desktop.
Rapid Lab-Scale Microwave-Assisted Extraction and Analysis of Anthropogenic Organic Chemicals in River Sediments
Microwave Assisted Extraction Para-Cresol Phenanthrene
2013/3/7
An Ethos EZ Microwave Lab Station is employed in the development of a robust and efficient microwave extraction method for organic contaminants of anthropogenic origin in river sediments. The extracti...
Atmospheric transport of persistent semi-volatile organic chemicals to the Arctic and cold condensation in the mid-troposphere – Part 2: 3-D modeling of episodic atmospheric transport
Atmospheric transport persistent semi-volatile organic chemicals the Arctic and cold condensation the mid-troposphere episodic atmospheric transport
2010/8/16
Two 3-dimensional global atmospheric transport models for persistent organic pollutants (POPs) have been employed to investigate the association between the large-scale atmospheric motions and polewar...
Atmospheric transport of persistent semi-volatile organic chemicals to the Arctic and cold condensation in the mid-troposphere – Part 1: 2-D modeling in mean atmosphere
Atmospheric transport persistent semi-volatile organic chemicals the Arctic and cold condensation the mid-troposphere mean atmosphere
2010/8/16
In the first part of this study for revisiting the cold condensation effect on global distribution of semi-volatile organic chemicals (SVOCs), the atmospheric transport of SVOCs to the Arctic in the m...
ICEM’s World Conferences on Energy and Chemicals End in Trinidad and Tobago
Energy Energy Conferences
2006/12/20
11 December 2006，After a full day devoted to the global pharmaceutical industry, ICEM delegates ended a week of trade union meetings in Port of Spain, Trinidad, on 1 December. The first part of the we...
Newly Discovered Genes, Brain Chemicals Likely Play a Role in Complex Bee Behavior（图）
Genes Brain Chemicals Bee Behavior neuropeptides
2006/11/10
October 30, 2006，Using a new combination of techniques, U.S. and European scientists have identified 36 genes that encode brain chemicals likely to play a role in the complex behaviors of the honey be...
CHEMICALS MEETING THE CRITERIA FOR LISTING AS CAUSING CANCER VIA THE AUTHORITATIVE BODIES MECHANISM
CAUSING CANCER CHEMICALS MEETING AUTHORITATIVE BODIES MECHANISM
2011/11/7
The chemicals listed in the table below meet the criteria for listing under Proposition 65 via the authoritative bodies listing mechanism. The regulatory guidance for listing by this mechanism is set ...
The Application of Drift Spectroscopy to the Multicomponent Analysis of Organic Chemicals Adsorbed on Montmorillonite
Montmorillonite Odor Organic Slow-release Sorption
2011/12/1
Abstract: Diffuse Reflectance Fourier Transform Infrared spectroscopy was used to monitor both molecular interactions and concentrations of volatile organic chemicals adsorbed on a commercial montmori...
Hydrolysis Kinetics of Organic Chemicals on Montmorillonite and Kaolinite Surfaces as Related to Moisture Content
Humic acid Hydrolysis kinetics Kaolinite Montmorillonite Surface acidity Water
2011/11/25
Abstract: The effect of the surface acidity of montmorillonite and kaolinite on the hydrolysis rate constants of different agricultural chemicals was studied at variable moisture contents. Ethyl aceta...