| D008722 |
Methods |
A series of steps taken in order to conduct research. |
Techniques,Methodological Studies,Methodological Study,Procedures,Studies, Methodological,Study, Methodological,Method,Procedure,Technique |
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| D010578 |
Petroleum |
Naturally occurring complex liquid hydrocarbons which, after distillation, yield combustible fuels, petrochemicals, and lubricants. |
Crude Oil,Crude Oils,Oil, Crude,Oils, Crude,Petroleums |
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| D011083 |
Polycyclic Compounds |
Compounds which contain two or more rings in their structure. |
Compounds, Polycyclic |
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| D002845 |
Chromatography |
Techniques used to separate mixtures of substances based on differences in the relative affinities of the substances for mobile and stationary phases. A mobile phase (fluid or gas) passes through a column containing a stationary phase of porous solid or liquid coated on a solid support. Usage is both analytical for small amounts and preparative for bulk amounts. |
Chromatographies |
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| D006838 |
Hydrocarbons |
Organic compounds that primarily contain carbon and hydrogen atoms with the carbon atoms forming a linear or circular structure. |
Hydrocarbon,Saturated Hydrocarbons,Unsaturated Hydrocarbons,Hydrocarbons, Saturated,Hydrocarbons, Unsaturated |
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| D001335 |
Vehicle Emissions |
Gases, fumes, vapors, and ODORANTS escaping from the cylinders of a gasoline or diesel internal-combustion engine. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Random House Unabridged Dictionary, 2d ed) |
Automobile Exhaust,Diesel Exhaust,Engine Exhaust,Vehicle Emission,Vehicular Emission,Traffic-Related Pollutants,Transportation Emissions,Vehicular Emissions,Emission, Vehicle,Emission, Vehicular,Emissions, Transportation,Emissions, Vehicle,Emissions, Vehicular,Exhaust, Automobile,Exhaust, Diesel,Exhaust, Engine,Pollutants, Traffic-Related,Traffic Related Pollutants |
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| D013053 |
Spectrophotometry |
The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum. |
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