Polycyclic aromatic hydrocarbons in milk and dairy products

2018 ◽  
Vol 72 (1) ◽  
pp. 120-131 ◽  
Author(s):  
Shabboo Amirdivani ◽  
Nasim Khorshidian ◽  
Maryam Ghobadi Dana ◽  
Reza Mohammadi ◽  
Amir M Mortazavian ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Dairy Products ◽  
Polycyclic Aromatic ◽  
Milk And Dairy Products

Extraction and Estimation of Polycyclic Aromatic Hydrocarbons in Total Diet Composites

1968 ◽  
Vol 51 (1) ◽  
pp. 122-129 ◽  
Author(s):  
John W Howard ◽  
Thomas Fazio ◽  
Richard H White ◽  
Barbara A Klimeck
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Dairy Products ◽  
Specific Procedure ◽  
Total Diet ◽  
Polycyclic Aromatic ◽  
Root Vegetables ◽  
General Method

Abstract A general method for polycyclic aromatic hydrocarbons and a specific procedure for benzo(a)pyrene in various total diet composites (dairy products; oils, fats, and shortenings; beverages; meat, fish, and poultry; and root vegetables) have been developed. Recoveries ranged from 75 to 100% at the 2 ppb level. Pyrene and fluoranthene were found to be present in all of the total diet samples analyzed. Trace quantities of benzo ( a ) pyrene, benzo(k)- fluoranthene, benzo ( b ) fluoranthene, and other hydrocarbons were isolated from various lots of the oils, fats, and shortenings composites.

The Assessment of Contamination and Source of Polycyclic Aromatic Hydrocarbons from the Sediments of the Someş River

2019 ◽  
Vol 64 (1) ◽  
pp. 55-67
Author(s):  
Vlad Pӑnescu ◽  
◽  
Mihaela Cӑtӑlina Herghelegiu ◽  
Sorin Pop ◽  
Mircea Anton ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Polycyclic Aromatic

1,1’-Biaceanthrylene and 2,2'-Biaceanthrylene: Models for Linking Larger Polycyclic Aromatic Hydrocarbons via Five-Membered Rings

2019 ◽  
Author(s):  
Yachu Du ◽  
Kyle Plunkett
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Electronic Properties ◽  
Aromatic Hydrocarbons ◽  
Model Systems ◽  
Redox Potentials ◽  
Dimer Model ◽  
Optical And Electronic Properties ◽  
Polycyclic Aromatic

We show that polycyclic aromatic hydrocarbon (PAH) chromophores that are linked between two five-membered rings can access planarized structures with reduced optical gaps and redox potentials. Two aceanthrylene chromophores were connected into dimer model systems with the chromophores either projected outward (2,2’-biaceanthrylene) or inward (1,1’-biaceanthrylene) and the optical and electronic properties were compared. Only the planar 2,2’-biaceanthrylene system showed significant reductions of the optical gaps (1 eV) and redox potentials in relation to the aceanthrylene monomer.<br>

1,1’-Biaceanthrylene and 2,2'-Biaceanthrylene: Models for Linking Larger Polycyclic Aromatic Hydrocarbons via Five-Membered Rings

2019 ◽  
Author(s):  
Yachu Du ◽  
Kyle Plunkett
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Polycyclic Aromatic Hydrocarbon ◽  
Aromatic Hydrocarbon ◽  
Electronic Properties ◽  
Aromatic Hydrocarbons ◽  
Model Systems ◽  
Redox Potentials ◽  
Dimer Model ◽  
Optical And Electronic Properties ◽  
Polycyclic Aromatic

We show that polycyclic aromatic hydrocarbon (PAH) chromophores that are linked between two five-membered rings can access planarized structures with reduced optical gaps and redox potentials. Two aceanthrylene chromophores were connected into dimer model systems with the chromophores either projected outward (2,2’-biaceanthrylene) or inward (1,1’-biaceanthrylene) and the optical and electronic properties were compared. Only the planar 2,2’-biaceanthrylene system showed significant reductions of the optical gaps (1 eV) and redox potentials in relation to the aceanthrylene monomer.<br>

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