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You searched for: Publication Year 2012 Remove constraint Publication Year: 2012 Subject gas chromatography-mass spectrometry Remove constraint Subject: gas chromatography-mass spectrometry Subject ionization Remove constraint Subject: ionization Subject air Remove constraint Subject: air Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Fe3O4 Nanoparticles and Carboxymethyl Cellulose: A Green Option for the Removal of Atmospheric Benzene, Toluene, Ethylbenzene, and o-Xylene (BTEX)

Author:
Eltouny, Nermin A.; Ariya, Parisa A.
Source:
Industrial & Engineering Chemistry Research 2012 v.51 no.39 pp. 12787-12795
ISSN:
1520-5045
Subject:
BTEX (benzene, toluene, ethylbenzene, xylene); X-ray diffraction; X-ray photoelectron spectroscopy; adsorbents; adsorption; aerosols; air; benzene; carboxymethylcellulose; cations; engineering; ethylbenzene; gas chromatography-mass spectrometry; ionization; iron oxides; models; nanoparticles; remediation; toluene; transmission electron microscopy; xylene
Abstract:
... In this work, we investigate the interaction of gaseous benzene, toluene, ethylbenzene, and o-xylene (BTEX) with Fe₃O₄ nanoparticles and demonstrate the potential application of Fe₃O₄ nanoparticles as adsorbents for BTEX. On the basis of X-ray diffraction, transmission electron microscopy, gas chromatography–mass spectrometry, and gas chromatography–flame ionization detection results, using toluen ...
DOI:
10.1021/ie3019092

2. Determination of polycyclic aromatic hydrocarbons and their oxy-, nitro-, and hydroxy-oxidation products

Author:
Cochran, R.E.; Dongari, N.; Jeong, H.; Beránek, J.; Haddadi, S.; Shipp, J.; Kubátová, A.
Source:
Analytica chimica acta 2012 v.740 pp. 93-103
ISSN:
0003-2670
Subject:
air; derivatization; gas chromatography-mass spectrometry; ionization; methane; monitoring; oxidation; particulates; polycyclic aromatic hydrocarbons; smoke; solid phase extraction; temperature
Abstract:
... A sensitive method has been developed for the trace analysis of PAHs and their oxidation products (i.e., nitro-, oxy-, and hydroxy-PAHs) in air particulate matter (PM). Following PM extraction, PAHs, nitro-, oxy-, and hydroxy-PAHs were fractionated using solid phase extraction (SPE) based on their polarities. Gas chromatography–mass spectrometry (GC–MS) conditions were optimized, addressing inject ...
DOI:
10.1016/j.aca.2012.05.050

3. Products of the OH radical-initiated reactions of 2- and 3-hexyl nitrate

Author:
Aschmann, Sara M.; Arey, Janet; Atkinson, Roger
Source:
Atmospheric environment 2012 v.46 pp. 264-270
ISSN:
1352-2310
Subject:
air; atmospheric chemistry; atmospheric pressure; flame ionization; free radicals; gas chromatography-mass spectrometry; ionization; isomerization; molecular weight; nitrates; tandem mass spectrometry
Abstract:
... Products of the gas-phase reaction of OH radicals with 2-hexyl nitrate (containing 13% 3-hexyl nitrate) have been investigated by gas chromatography with mass spectral and flame ionization detection, and by direct air sampling atmospheric pressure ionization tandem mass spectrometry. The products identified and quantified from 2-hexyl nitrate were: 2-hexanone (8.6 ± 1.3%), propanal (3.4 ± 0.8%), b ...
DOI:
10.1016/j.atmosenv.2011.09.073