TY - JOUR
T1 - Retention behavior of alkyl-substituted polycyclic aromatic sulfur heterocycle isomers in gas chromatography on stationary phases of different selectivity
AU - Wilson, Walter B.
AU - Sander, Lane C.
AU - Oña-Ruales, Jorge O.
AU - Mössner, Stephanie G.
AU - Sidisky, Leonard M.
AU - Lee, Milton L.
AU - Wise, Stephen A.
PY - 2017/2/10
Y1 - 2017/2/10
N2 - Retention indices for 10 sets of alkyl-substituted polycyclic aromatic sulfur heterocycles (PASHs) isomers (total of 80 PASHs) were determined using gas chromatography with three different stationary phases: a 50% phenyl phase, a 50% liquid crystalline dimethylpolysiloxane (LC-DMPS) phase, and an ionic liquid (IL) phase. Correlations between the retention behavior on the three stationary phases and PASH geometry [length-to-breadth (L/B) and thickness (T)] were investigated for the following PASHs: 4 methyl-substituted dibenzothiophenes (DBTs), 3 ethyl-substituted DBTs, 15 dimethyl-substituted DBTs, 8 trimethyl-substituted DBTs, 15 methyl-substituted naphthothiophenes, 30 methyl-substituted benzonaphthothiophenes, and 5 methyl-substituted tetrapheno[1,12-bcd]thiophene. Correlation coefficients for retention on the 50% phenyl phase vs L/B ranged from r = −0.28 (MeBbN23Ts) to r = 0.92 (EtDBTs). Correlation coefficients for retention on the IL phase vs L/B ranged from r = 0.13 (MeN12Ts) to r = 0.83 (EtDBTs). Correlation coefficients for retention on the 50% LC-DMPS phase vs L/B ranged from r = 0.22 (MeDBTs) to r = 0.84 (TriMeDBTs).
AB - Retention indices for 10 sets of alkyl-substituted polycyclic aromatic sulfur heterocycles (PASHs) isomers (total of 80 PASHs) were determined using gas chromatography with three different stationary phases: a 50% phenyl phase, a 50% liquid crystalline dimethylpolysiloxane (LC-DMPS) phase, and an ionic liquid (IL) phase. Correlations between the retention behavior on the three stationary phases and PASH geometry [length-to-breadth (L/B) and thickness (T)] were investigated for the following PASHs: 4 methyl-substituted dibenzothiophenes (DBTs), 3 ethyl-substituted DBTs, 15 dimethyl-substituted DBTs, 8 trimethyl-substituted DBTs, 15 methyl-substituted naphthothiophenes, 30 methyl-substituted benzonaphthothiophenes, and 5 methyl-substituted tetrapheno[1,12-bcd]thiophene. Correlation coefficients for retention on the 50% phenyl phase vs L/B ranged from r = −0.28 (MeBbN23Ts) to r = 0.92 (EtDBTs). Correlation coefficients for retention on the IL phase vs L/B ranged from r = 0.13 (MeN12Ts) to r = 0.83 (EtDBTs). Correlation coefficients for retention on the 50% LC-DMPS phase vs L/B ranged from r = 0.22 (MeDBTs) to r = 0.84 (TriMeDBTs).
KW - Gas chromatography
KW - Polycyclic aromatic sulfur heterocycles
KW - Retention indices
KW - Shape selectivity
KW - Stationary phases
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U2 - 10.1016/j.chroma.2017.01.026
DO - 10.1016/j.chroma.2017.01.026
M3 - Article
C2 - 28089274
AN - SCOPUS:85009808648
VL - 1484
SP - 73
EP - 84
JO - Journal of Chromatography A
JF - Journal of Chromatography A
SN - 0021-9673
ER -