SPECTROFLUOROMETRIC ANALYSIS OF AROMATIC-COMPOUNDS - REVIEW OF APPLICABILITY OF NITROMETHANE AS A SELECTIVE FLUORESCENCE QUENCHING AGENT FOR IDENTIFICATION OF ALTERNANT VS. NONALTERNANT POLYCYCLIC AROMATIC-HYDROCARBONS

Authors
ACREE WE PANDEY S TUCKER SA FETZER JC
Citation
We. Acree et al., SPECTROFLUOROMETRIC ANALYSIS OF AROMATIC-COMPOUNDS - REVIEW OF APPLICABILITY OF NITROMETHANE AS A SELECTIVE FLUORESCENCE QUENCHING AGENT FOR IDENTIFICATION OF ALTERNANT VS. NONALTERNANT POLYCYCLIC AROMATIC-HYDROCARBONS, Polycyclic aromatic compounds, 12(2), 1997, pp. 71-123
Citations number
139
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Polycyclic aromatic compounds → ACNP
ISSN journal
10406638
Volume
12
Issue
2
Year of publication
1997
Pages
71 - 123
Database
ISI
SICI code
1040-6638(1997)12:2<71:SAOA-R>2.0.ZU;2-K
Abstract
Applicability of nitromethane as a selective fluorescence quenching ag ent for discriminating between alternant versus nonalternant polycycli c aromatic compounds is critically reviewed. Experimental data for 170 different polycyclic aromatic hydrocarbons (PAHs) and polycyclic arom atic nitrogen hetero-atoms (PANHs) dissolved in nonelectrolyte solvent s and in aqueous micellar solvent media are presented. Specific items examined include the basic quenching mechanism and determination of ra te constants, chemical and instrumental artifacts associated with accu rate determination of fluorescence emission intensities, and the effec t that solvent polarity, surfactant headgroup charge and electron dona ting and electron withdrawing substituents have in regards to fluoresc ence emission quenching by nitromethane.