Analysis of alkyl nitrates and selected halocarbons in the ambient atmosphere using a charcoal preconcentration technique

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

■ A method has been developed to measure ≥C3 alkyl nitrates and C1-C2 halocarbons, such as perchloroethylene and bromoform, in ambient air. The method preconcentrates analytes on a 5-mg charcoal trap from multiliter volumes of air. Analytes are desorbed from the charcoal with a small volume of solvent and are analyzed by highresolution gas chromatography with electron capture detection. Laboratory and field tests have been performed to evaluate method precision, analyte breakthrough, and compound recovery from the charcoal. Tests verified that the sampling/analytical system is free from artifact formation under clean to moderately polluted conditions, but further tests are required for areas of high concentrations of hydrocarbons, NOx, and oxidants. The method allows measurement of halocarbons and ≥C3 alkyl nitrates at concentrations in the pptv range.

Original languageEnglish (US)
Pages (from-to)61-67
Number of pages7
JournalEnvironmental Science and Technology
Volume25
Issue number1
StatePublished - 1991
Externally publishedYes

Fingerprint

Halocarbons
halocarbon
Charcoal
charcoal
Nitrates
nitrate
atmosphere
Tetrachloroethylene
tetrachloroethylene
measurement method
Hydrocarbons
Air
Oxidants
oxidant
Gas chromatography
ambient air
artifact
gas chromatography
hydrocarbon
Sampling

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)
  • Environmental Chemistry
  • Environmental Engineering

Cite this

@article{735145b65e974d16a93662c149f52101,
title = "Analysis of alkyl nitrates and selected halocarbons in the ambient atmosphere using a charcoal preconcentration technique",
abstract = "■ A method has been developed to measure ≥C3 alkyl nitrates and C1-C2 halocarbons, such as perchloroethylene and bromoform, in ambient air. The method preconcentrates analytes on a 5-mg charcoal trap from multiliter volumes of air. Analytes are desorbed from the charcoal with a small volume of solvent and are analyzed by highresolution gas chromatography with electron capture detection. Laboratory and field tests have been performed to evaluate method precision, analyte breakthrough, and compound recovery from the charcoal. Tests verified that the sampling/analytical system is free from artifact formation under clean to moderately polluted conditions, but further tests are required for areas of high concentrations of hydrocarbons, NOx, and oxidants. The method allows measurement of halocarbons and ≥C3 alkyl nitrates at concentrations in the pptv range.",
author = "Atlas, {Elliot L}",
year = "1991",
language = "English (US)",
volume = "25",
pages = "61--67",
journal = "Environmental Science & Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "1",

}

TY - JOUR

T1 - Analysis of alkyl nitrates and selected halocarbons in the ambient atmosphere using a charcoal preconcentration technique

AU - Atlas, Elliot L

PY - 1991

Y1 - 1991

N2 - ■ A method has been developed to measure ≥C3 alkyl nitrates and C1-C2 halocarbons, such as perchloroethylene and bromoform, in ambient air. The method preconcentrates analytes on a 5-mg charcoal trap from multiliter volumes of air. Analytes are desorbed from the charcoal with a small volume of solvent and are analyzed by highresolution gas chromatography with electron capture detection. Laboratory and field tests have been performed to evaluate method precision, analyte breakthrough, and compound recovery from the charcoal. Tests verified that the sampling/analytical system is free from artifact formation under clean to moderately polluted conditions, but further tests are required for areas of high concentrations of hydrocarbons, NOx, and oxidants. The method allows measurement of halocarbons and ≥C3 alkyl nitrates at concentrations in the pptv range.

AB - ■ A method has been developed to measure ≥C3 alkyl nitrates and C1-C2 halocarbons, such as perchloroethylene and bromoform, in ambient air. The method preconcentrates analytes on a 5-mg charcoal trap from multiliter volumes of air. Analytes are desorbed from the charcoal with a small volume of solvent and are analyzed by highresolution gas chromatography with electron capture detection. Laboratory and field tests have been performed to evaluate method precision, analyte breakthrough, and compound recovery from the charcoal. Tests verified that the sampling/analytical system is free from artifact formation under clean to moderately polluted conditions, but further tests are required for areas of high concentrations of hydrocarbons, NOx, and oxidants. The method allows measurement of halocarbons and ≥C3 alkyl nitrates at concentrations in the pptv range.

UR - http://www.scopus.com/inward/record.url?scp=0025925622&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025925622&partnerID=8YFLogxK

M3 - Article

VL - 25

SP - 61

EP - 67

JO - Environmental Science & Technology

JF - Environmental Science & Technology

SN - 0013-936X

IS - 1

ER -