dispersive liquid liquid microextraction (dllme) combined with gas chromatography–mass spectrometry (gc–ms) was used for the extraction and determination of 13 polycyclic aromatic hydrocarbons (pahs) in mineral water samples. in this procedure, the suitable combination of extraction solvent (500 µl chloroform) and disperser solvent (1000 µl acetone) were quickly injected into the water sample (...

Polycyclic aromatic hydrocarbons (PAHs) and hydroxylated PAHs (OH-PAHs) are ubiquitous atmospheric pollutants that a concern because of their endocrine disrupting activities. In this study, seasonal air sampling was conducted in 2017 2018 Kanazawa, Ishikawa Prefecture, Japan. The concentrations variations OH-PAHs were analyzed, health risks individual congeners evaluated based on relative activ...

The in vitro transformation of mouse and hamster cells by chemical carcinogens has been described and well established. (1—5, 8, 13, 19, 20). Most in vitro transformations of cell cultures by chemical carcinogens yielded sarcomas upon reinsertion into syngeneic hosts. Transformation of rat embryo cells by 4-nitroquinoline 1-oxide (15) and fluorenylhydroxamic acids (7) has been reported recent...

This paper presents an optosensor for screening of four polycyclic aromatic hydrocarbons: anthracene (ANT), benzo[a]pyrene (BaP), fluoranthene (FLT), and benzo[b]fluoranthene (Bbf) using a photomultiplier device with an artificial neural network as transducer. The optosensor is based on the on-line immobilization on a non-ionic resin (Amberlite XAD-4) solid support in a continuous flow. The det...

Polycyclic aromatic hydrocarbons (PAHs) are considered to be significant environmental carcinogens. Additionally, various planar ring systems are capable of intercalating with DNA, leading to a number of drugs that possess chemotherapeutic activity. In this study, three new polyaromatic compounds with a side chain were synthesized, and spectroscopic as well as elemental analyses were performed....

The blackness index of an air sample, measurea by reflectance on an air sample filter, is an indication of the mean darkness of the particles collected on such a medium. As the presence of polycyclic hydrocarbons in air samples is associated with soot or carbon particles, it seemed reasonable to find out if a correlation between these two measurements could be established. The current availabil...