polycyclic hydrocarbon

polycyclic hydrocarbon

[¦päl·i′sī·klik ′hī·drə‚kär·bən]
(organic chemistry)
References in periodicals archive ?
Ramos and colleagues study molecular and genetic impacts of environmental contaminants--including the polycyclic hydrocarbon benzo[a]pyrene (BaP)--on heart disease and cancer.
Contract award: diagnostic market polycyclic hydrocarbons (hap) in pavements and roads and asbestos in civil engineering buildings and structures in the t9 tramway project linking paris porte de choisy in orly ville.
Five groups of compounds were separated and extracted from silica gel with ethyl ether: aliphatic hydrocarbons (AlHC), monocyclic hydrocarbons (MCHC), polycyclic hydrocarbons and some sulfur compounds (PCHC), neutral hetero-atomic (Nhet) and polar hetero-atomic (Phet) compounds.
With reference to figure 1, it is obvious that the two paint brands have comparable levels of the polycyclic hydrocarbons except the case where Phenanthrene is found in Glaxo but completely undetectable in Demcork.
A report by the former National Public Health Service, published in 2003, said: "The [briquettemaking] process generated large amounts of gas, tar, ammonia and other polycyclic hydrocarbons.
A report by the former National Public Health Service, published in 2003, said: "The [briquette-making] process generated large amounts of gas, tar, ammonia and other polycyclic hydrocarbons.
Scientists in Holland found church air was considerably higher in carcinogenic polycyclic hydrocarbons than air beside roads used by more than 45,000 vehicles daily.
For environmental analysis, method or compound group specific GC CARE columns allow unambiguous component identification at low detection limits for various groups of organic pesticides, polycyclic hydrocarbons, volatiles or PCBs.
The professor is engaged in the production of high molecular weight, planar, partially poorly soluble and sublimable and ionic polycyclic hydrocarbons.
AHREs respond to numerous polycyclic hydrocarbons and halogenated coplanar molecules such as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD; dioxin) and polychlorinated biphenyls.
Tests on samples at the council-owned Leckwith allotments in Cardiff uncovered levels of heavy metals and polycyclic hydrocarbons - which can be cancer-causing - significantly above guidelines laid down by both the Food Standards Agency and the Government.

Full browser ?