Generation of sub-ppb level vapor phase mixtures of biogenic volatile organic compounds from liquid phase standards and stepwise characterization of their volatilization properties by thermal desorption–gas chromatography–mass spectrometry

Iqbal, Mohammad Asif; Kim, Ki‐Hyun

doi:10.1016/j.chroma.2014.10.086

Cited by 6 publications

(1 citation statement)

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“…For instance, the slope values for the concentration change with elapsed sampling time is high and negative for B (−1.5376) compared to almost zero for PhAl (0.0001). This observation may directly reflect the effect of differences in the liquid-gas partitioning behavior of different odorants 30 and possibly the extent of their hydrophobicity 31 . Due to differences in hydrophobicity, the extraction of volatile compounds can occur more effectively in the first purging cycle, and then the extent of extraction decreases in the subsequent purging cycles.…”

Section: Resultsmentioning

confidence: 99%

Performance comparison of MOF and other sorbent materials in removing key odorants emitted from pigpen slurry

Ahmed

Deep

Kwon

et al. 2016

Sci Rep

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A batch-type dynamic headspace (HS) system was used to generate vapor-phase volatile organic compounds (VOCs) from a pigpen slurry sample. Sorptive removal capability of MOF-199 and other sorbents (zeolite (ZL) and activated carbon (AC)) was assessed against a total of 13 slurry-borne odorants ((methyl ethyl ketone (MEK), isobutyl alcohol (i-BuAl), benzene (B), toluene (T), p-xylene (p-X), m-xylene (m-X), o-xylene (o-X), styrene (S), o-cresol (o-C), phenol (PhAl), p-cresol (p-C), indole (ID), and skatole (SK)). Adsorption capacity of MOF-199 and two sorbents, when assessed for the 13 odorants at a 10% breakthrough volume (BTV), was 22.6 ± 42.3, 0.70 ± 1.08, and 11.0 ± 18.3 μg g−1, respectively. The adsorption capacity (μg g−1) assessed at 10% BTV showed the superiority of MOF-199 towards phenolic and indolic compounds (such as o-C (0.31 ± 0.04), PhAl (61.6 ± 4.98), p-C (140 ± 7.95), ID (27.8 ± 2.23), and SK (63.9 ± 1.55)), demonstrating the feasibility of MOF as sorption media for treating certain nuisance components.

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Section: Resultsmentioning

confidence: 99%