Abstract:

Spectra were recorded with the aid of a Fluoromax-P spectrofluorimeter (Horiba Jobin Yvon) using n-octane as the pure standard solvent and the 77K fiber optic probe. Emission and excitation spectra are reported for 23 high molecular weight polycyclic aromatic hydrocarbon standards.

Suggested Citation:

Luciano E. H. Violante, Maha Al-Tameemi, Andres D. Campiglia*. 2017. 77K Excitation and Fluorescence Spectra of High Molecular Weight Polycyclic Aromatic Hydrocarbons. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7Q52N1Q

Publications:

Santana, A., Comas, A., Wise, S., Wilson, W. B., and, & Campiglia, A. D. (2020). Instrumental improvements for the trace analysis of structural isomers of polycyclic aromatic hydrocarbons with molecular mass 302 Da. Analytica Chimica Acta, 1100, 163–173. doi:10.1016/j.aca.2019.10.067

Purpose:

Identify spectral features of HMW-PAH standards.

Data Parameters and Units:

column 1 = X is wavelength (nm) column 2 = Y is intensity (cps)

Methods:

File naming convention example: 40_ppb_N23eP_775_emission_blanksub_truncated.txt where 40 = concentration value of high molecular weight polycyclic aromatic hydrocarbon; ppb = concentration unit (parts per billion); N23eP = high molecular weight PAH standard, where the following code list was used: DBelP: Dibenzo[e,l]pyrene DBjlF: Dibenzo[j,l]fluoranthene N12aP: Naphtho[1,2-a]pyrene N12bF: Naphtho[1,2-b]fluoranthene DBahP: Dibenzo[a,h]pyrene N12kF: Naphtho[1,2-k]fluoranthene DBafF: Dibenzo[a,f]fluoranthene BbPer: Benzo[b]perylene DBaeF: Dibenzo[a,e]fluoranthene DBaeP: Dibenzo[a,e]pyrene DBaiP: Dibenzo[a,i]pyrene DBakF: Dibenzo[a,k]fluoranthene DBalP: Dibenzo[a,l]pyrene DBbkF: Dibenzo[b,k]fluoranthene DBdemnN: Dibenzo[de,mn]naphthacene N12eP: Naphtho[1,2-e]pyrene N21aP: Naphtho[2,1-a]pyrene N21bF: Naphtho[2,1-b]fluoranthene N23aP: Naphtho[2,3-a]pyrene N23bF: Naphtho[2,3-b]fluoranthene N23eP: Naphtho[2,3-e]pyrene N23jF: Naphtho[2,3-j]fluoranthene N23kF: Naphtho[2,3-k]fluoranthene; emission = spectra type (emission or excitation); blanksub = blank was subtracted from data; truncated = spectra that contained data past 700 nm and the data past 700 nm was removed or extended = spectrum was acquired for a certain wavelength range but then extended out to 700 nm so that all the spectra end at 700 nm or curvilyextended = instead of repeating the last point up to 700 nm, additional points added but curving downwards so that there isn’t a straight line at a high intensity; smoothed = spectrum smoothed using a Savitzky-Golay filter.

Individual Files: