| 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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| D011083 |
Polycyclic Compounds |
Compounds which contain two or more rings in their structure. |
Compounds, Polycyclic |
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| D002849 |
Chromatography, Gas |
Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix. |
Chromatography, Gas-Liquid,Gas Chromatography,Chromatographies, Gas,Chromatographies, Gas-Liquid,Chromatography, Gas Liquid,Gas Chromatographies,Gas-Liquid Chromatographies,Gas-Liquid Chromatography |
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| D005449 |
Fluorenes |
A family of diphenylenemethane derivatives. |
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| D000397 |
Air Pollution |
The presence of contaminants or pollutant substances in the air (AIR POLLUTANTS) that interfere with human health or welfare, or produce other harmful environmental effects. The substances may include GASES; PARTICULATE MATTER; or volatile ORGANIC CHEMICALS. |
Air Quality,Air Pollutions,Pollution, Air |
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| D000873 |
Anthracenes |
A group of compounds with three aromatic rings joined in linear arrangement. |
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| D001551 |
Benz(a)Anthracenes |
Four fused benzyl rings with three linear and one angular, that can be viewed as a benzyl-phenanthrenes. Compare with NAPHTHACENES which are four linear rings. |
Benz(b)Phenanthrenes,Naphthanthracenes |
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| D001580 |
Benzopyrenes |
A class of chemicals that contain an anthracene ring with a naphthalene ring attached to it. |
Benzpyrene |
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| D013058 |
Mass Spectrometry |
An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers. |
Mass Spectroscopy,Spectrometry, Mass,Spectroscopy, Mass,Spectrum Analysis, Mass,Analysis, Mass Spectrum,Mass Spectrum Analysis,Analyses, Mass Spectrum,Mass Spectrum Analyses,Spectrum Analyses, Mass |
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