The Determination of Organic Volatiles In Air Pollution Studies: Characterization of Profiles

Bertsch, W.; Chang, Ray; Zlatkis, A.

doi:10.1093/chromsci/12.4.175

Cited by 155 publications

(48 citation statements)

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“…13 This porous polymer is based on 2,6-diphenyl-p-phenylene oxide, a low bleed material originally used as a GC column packing. Problems recognized with Tenax GC when used for air sampling include a rather high background 14 and chemical decomposition in the presence of oxidants, such as O 3 and NO x , that can produce VOC artifacts.…”

Section: Polymer/tenax Adsorbentsmentioning

confidence: 99%

Ozone Artifacts and Carbonyl Measurements Using Tenax GR, Tenax TA, Carbopack B, and Carbopack X Adsorbents

Lee

Batterman

Jia

et al. 2006

Journal of the Air & Waste Management Association

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Four popular thermally desorbable adsorbents used for air sampling (Tenax TA, Tenax GR, Carbopack B, and Carbopack X) are examined for the potential to form artifacts with ozone (O 3 ) at environmental concentrations. The performance of these adsorbents for the ketone and aldehyde species identified as O 3 -adsorbent artifacts was also characterized, including recovery, linearity, and method detection limits (MDLs). Using gas chromatography/mass spectrometry, 13 different artifacts were identified and confirmed for both Tenax TA and Tenax GR, 9 for Carbopack B, but none for Carbopack X. Several O 3 artifacts not reported previously were identified, including: pentanal, 3-hexanone, 2-hexanone, hexanal, 3-heptanone, and heptanal with Tenax TA; pentanal, 3-hexanone, 2-hexanone, hexanal, and 3-heptanone on Tenax GR; and 1-octene and 1-nonene with Carbopack B. Levels of straight-chain aldehyde artifacts rapidly diminished after a few cycles of adsorbent conditioning/O 3 exposure, and concentrations could be predicted using a first-order model. Phenyl-substituted carbonyl artifacts (benzaldehyde and acetophenone) persisted on Tenax TA and GR even after 10 O 3 exposure-conditioning cycles. O 3 breakthrough through the adsorbent bed was most rapid in adsorbents that yielded the highest levels of artifacts. Overall, artifact composition and concentration are shown to depend on O 3 concentration and dose, conditioning method, and adsorbent type and age. Calibrations showed good linearity, and most compounds had reasonable recoveries, for example, 90 Ϯ 15% for Tenax TA, 97 Ϯ 23% for Tenax GR, 101 Ϯ 24% for Carbopack B, and 79 Ϯ 25% (91 Ϯ 9% for n-aldehydes) for Carbopack X. Benzeneacetaldehyde recovery was notably poorer (22-63% across the four adsorbents). MDLs for several compounds were relatively high, up to 5 ng. By accounting for both artifact formation and method performance, this work helps to identify which carbonyl compounds can be measured using thermally desorbable adsorbents and which may be prone to bias because of the formation of O 3 -adsorbent artifacts.

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Section: Polymer/tenax Adsorbentsmentioning

confidence: 99%

Ozone Artifacts and Carbonyl Measurements Using Tenax GR, Tenax TA, Carbopack B, and Carbopack X Adsorbents

Lee

Batterman

Jia

et al. 2006

Journal of the Air & Waste Management Association

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“…Tenax GC (2, 4-diphenylparaphenylene oxide polymer) has been used by Bertsch et al (1974), Gallant et al (1978), Pellizzari et al (1976 a,b) and Russel (1975) for sampling urban air samples and in laboratory tests, versus other polymers. Both Russel (1975) and Pellizari et al (1976b) found it to be superior to the other adsorbents they tested, including carbon, Poropak N, Poropak R, Chromosorb 104, and Carbosieve B.…”

Section: Polymeric Resins and Chromatographic Adsorbentsmentioning

confidence: 99%

“…Tenax GC has been used by Bertsch et al (1974), Bunn et al (1975), Mieure and Dietrich (1973), and Pellizzari et al (1976 a,b) in various studies of hydrocarbons ip urban air.…”

Section: Thermal Desorptionmentioning

confidence: 99%

Sampling and analysis of trace-organic constituents in ambient and workplace air at coal-conversion facilities

Flotard¹

1980

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“…Based on the development of thermally stable porous polymers (1), trapping systems have been reported for biologically important volatiles (1o-12) and air pollutants (2). We have modified and refined such techniques for the routine analysis of volatile pyrolyzates.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Volatile Pyrolytic Products of Tobacco Constituents: Stearic Acid Pyrolysis

Haeberer¹,

Chortyk²

1975

Contributions to Tobacco &Amp; Nicotine Research

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A procedure has been developed to collect, transfer, and analyse volatile organic pyrolysis products of tobacco leaf compounds. The volatiles were collected in a series of three traps on adsorbents that also served as substrates for transfer and for introduction of the volatiles into a gas chromatograph. Analytical procedures are described for three gas chromatographic columns packed, respectively, with the three different adsorbents used in the traps. With this system, volatile pyrolyzates were collected and analysed without the use of cryogenic traps, vacuum manifolds, or gas-sampling valves. The applicability of the procedures is demonstrated for the pyrolysis volatiles of stearic acid, a tobacco constituent

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The Determination of Organic Volatiles In Air Pollution Studies: Characterization of Profiles

Cited by 155 publications

References 0 publications

Ozone Artifacts and Carbonyl Measurements Using Tenax GR, Tenax TA, Carbopack B, and Carbopack X Adsorbents

Ozone Artifacts and Carbonyl Measurements Using Tenax GR, Tenax TA, Carbopack B, and Carbopack X Adsorbents

Sampling and analysis of trace-organic constituents in ambient and workplace air at coal-conversion facilities

Analysis of Volatile Pyrolytic Products of Tobacco Constituents: Stearic Acid Pyrolysis

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