Investigation of aromatic impurities in liquefied petroleum gas by solid-phase extraction sampling coupled with gas chromatography-mass spectrometry

doi:10.3724/SP.J.1123.2016.08026

Abstract

Abstract:

A dynamic solid-phase extraction system for sampling and synchronous preconcentration of aromatic impurities from liquefied petroleum gas (LPG) with graphitized carbon black (GCB) sorbents was constructed. The target aromatics (benzene, toluene, xylenes, styrene and naphthalene) were rapidly collected from LPG flow and analyzed with gas chromatography-mass spectrometry. Compared with C18 and poly (styrene-divinylbenzene) copolymer sorbents, the tandem packed GCB cartridges presented the highest extraction efficiency for capturing aromatics from LPG. The sampling efficiency, reproducibility and storage stability of aromatics on the adsorption GCB cartridge were evaluated. The quantification curves of eight aromatics in nitrogen simulative gas flow were linear in the range of 15-1000 μ g/m³. The developed sampling method presented good advantages of high recoveries (92.9%-109.0%), low method detection limits (1.0-6.2 μg/m³), together with excellent precision (relative standard deviations:0.6%-5.8%) and accuracy (relative errors:0.8%-8.2%), respectively.

Key words: aromatics, gas chromatography-mass spectrometry (GC-MS), graphitized carbon black (GCB), liquefied petroleum gas (LPG), sampling, solid-phase extraction (SPE)

CLC Number:

O658

LI Hai-Fang, GAO Cuihua, LIN Jin-Ming. Investigation of aromatic impurities in liquefied petroleum gas by solid-phase extraction sampling coupled with gas chromatography-mass spectrometry[J]. Chinese Journal of Chromatography, 2017, 35(1): 47-53.

References

[1] Zhang Y, Wang X, Zhang Z, et al. Atmos Environ, 2013, 79: 110
[2] Zhao B, Zhang S, Zhou Y, et al. Microchem J, 2015, 119: 140
[3] Lai C H, Chang C C, Wang C H, et al. Atmos Environ, 2009, 43: 1456
[4] Avgidou M S, Kaldis S P, Sakellaropoulos G P. J Membrane Sci, 2004, 233: 21
[5] Choi S, Oh S H, Kim Y S, et al. Surv Asia, 2006, 10: 110
[6] Zhuang Q, Yodotani J, Kato M. Fuel, 2005, 84: 443
[7] Zhang K, Wang J Z, Liang B, et al. Environ Pollut, 2011, 159: 1510
[8] Gasca J, Ortiz E, Castillo H, et al. Atmos Environ, 2004, 38: 3517
[9] Adam T W, Astorga C, Clairotte M, et al. Atmos Environ, 2011, 45: 2842
[10] Lim M C H, Ayoko G A, Morawska L Z. Atmos Environ, 2007, 41: 150
[11] Huang Y, Ling Z H, Lee S C, Atmos Environ, 2015, 122: 809
[12] American Society for Testing and Materials (ASTM). Standard Test Method for Residues in Liquefied Petroleum (LP) Gases.[2016-08-05]. http://www.astm.org/DATABASE.CART/HISTORICAL/D2158-05.htm
[13] Wu J M, Hu R K, Yue J Q, et al. J Chromatogr A, 2009, 1216: 1053
[14] Dabrowska H, Dabrowski L, Biziuk M, et al. J Chromatogr A, 2003, 1003: 29
[15] Gosetti F, Chiuminatto U, Mazzucco E, et al. J Chromatogr A, 2011, 1218: 6308
[16] Li K, Li H-F, Liu L-B, et al. J Chromatogr A, 2007, 1154: 74
[17] Mangani F, Lattanzi L, Maione M. Chromatographia, 1998, 47: 57
[18] Batlle R, Carlsson H, Tollback P, et al. Anal Chem, 2003, 75: 3137
[19] Criado M R, Pereiro I R, Torrijos R C. J Chromatogr A, 2002, 963: 65
[20] Woolfenden E. J Chromatogr A, 2010, 1217: 2674
[21] Woolfenden E. J Chromatogr A, 2010, 1217: 2685
[22] Lv L, Huang C, Lei Z, et al. Sep Purif Technol, 2014, 125: 247
[23] Shariatgorji M, Amini N, Thorsen G, et al. Anal Chem, 2008, 80: 5515
[24] Amini N, Shariatgorji M, Crescenzi C, et al. Anal Chem, 2010, 82: 290
[25] Mastrogiacomo A R, Ottaviani M F, Pierini E, et al. Chromatographia, 2002, 55: 345
[26] Boonjob W, Miro M, Segundo M A, et al. Anal Chem, 2011, 83: 5237
[27] Elke K, Jermann E, Begerow J, et al. J Chromatogr A, 1998, 826: 191
[28] Young C R, Menegazzo N, Riley A E. Anal Chem, 2011, 83: 6141
[29] Yoshida T, Matsunaga I, Oda H. J Chromatogr A, 2004, 1023: 255
[30] Yoshida T. J Chromatogr A, 2009, 1216: 5069