## Abstract A highβperformance liquid chromatography (HPLC) method for the analysis of nitrated polcyclic aromatic hydrocarbons (NPAHs) is reported. NPAH mixtures were preβconcentrated using solidβphase extraction and well resolved on a C~18~ column. They were detected using an indirect method invo
Fluorescence quenching studies of nitrated polycyclic aromatic hydrocarbons
β Scribed by Salma M.Z. Al-Kindy; James N. Miller
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 504 KB
- Volume
- 26
- Category
- Article
- ISSN
- 1522-7235
- DOI
- 10.1002/bio.1205
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Fluorescence quenching of nine aromtic hydrocarbons by cesium chloride in methmolic solution has been meassured t~Sing'pulse fluo&netrY. A log-log relationship between kq, the rate corstant for quenching by CsCI, and kS+T, the inter- system crossing rate of the fluor, appears to,be applicable to the
## Abstract Glass capillary gas chromatography has been investigated as a method for the analysis of nitrated polycyclic aromatic hydrocarbons (nitroβPAH) using both splitless and onβcolumn injection techniques. The nitroβPAH showed good chromatographic performance and thermal stability under the G
Rate constants of tluorescence quenching by electron acceptors are greater for altemant than for non-altemant hydrocarbons with equal E,-o. The reverse is true for quenching by electron donors. This is consistent with the towering of the worbital ener&s of non-altemant compared to aftemant polycycti