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Title: Atmospheric Fluoroform (CHF3, HFC-23) at Cape Grim, Tasmania (1978-1995)

Abstract

The sampling and analytical methods are described more fully in Oram et al. (1998). In summary, air samples were taken from the archive of Cape Grim, Tasmania (41oS, 145oE) air samples collected from 1978 through 1995. Comparisons of CFC-11, CFC-12, CFC-113, CH3CCl3, and CH4 data between archive samples and corresponding in-situ samples for the same dates confirm that the archive samples are both representative and stable over time. Samples were analyzed by gas chromatography-mass spectrometry (GC-MS), using a KCl-passivated alumina PLOT column. Fluoroform was monitored on mass 69 (CF3+). The analytical precision (one standard deviation of the mean) for two or three replicate analyses was typically ± 1% of the mean measured value. The overall uncertainty of the observed data is ± 10%, taking into account uncertainties in the preparation of the primary standards, the purity of the fluoroform used to make the primary standards, as well as the analytical precision.

Authors:
; ; ; ;
  1. University of East Anglia, Norwich, United Kingdom
  2. ICI Chemicals and Polymers, Ltd., Cheshire, United Kingdom
  3. CRC for Southern Hemisphere Meteorology, Victoria, Australia
Publication Date:
Product Type:
Dataset
Research Org.:
Environmental System Science Data Infrastructure for a Virtual Ecosystem (ESS-DIVE) (United States); Carbon Dioxide Information Analysis Center (CDIAC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Subject:
54 ENVIRONMENTAL SCIENCES
OSTI Identifier:
1394119
DOI:
https://doi.org/10.3334/CDIAC/ATG.003

Citation Formats

Oram, D. E., Sturges, W. T., Penkett, S. A., McCulloch, A., and Fraser, P. J. Atmospheric Fluoroform (CHF3, HFC-23) at Cape Grim, Tasmania (1978-1995). United States: N. p., 2000. Web. doi:10.3334/CDIAC/ATG.003.
Oram, D. E., Sturges, W. T., Penkett, S. A., McCulloch, A., & Fraser, P. J. Atmospheric Fluoroform (CHF3, HFC-23) at Cape Grim, Tasmania (1978-1995). United States. doi:https://doi.org/10.3334/CDIAC/ATG.003
Oram, D. E., Sturges, W. T., Penkett, S. A., McCulloch, A., and Fraser, P. J. 2000. "Atmospheric Fluoroform (CHF3, HFC-23) at Cape Grim, Tasmania (1978-1995)". United States. doi:https://doi.org/10.3334/CDIAC/ATG.003. https://www.osti.gov/servlets/purl/1394119. Pub date:Sun Oct 01 00:00:00 EDT 2000
@article{osti_1394119,
title = {Atmospheric Fluoroform (CHF3, HFC-23) at Cape Grim, Tasmania (1978-1995)},
author = {Oram, D. E. and Sturges, W. T. and Penkett, S. A. and McCulloch, A. and Fraser, P. J.},
abstractNote = {The sampling and analytical methods are described more fully in Oram et al. (1998). In summary, air samples were taken from the archive of Cape Grim, Tasmania (41oS, 145oE) air samples collected from 1978 through 1995. Comparisons of CFC-11, CFC-12, CFC-113, CH3CCl3, and CH4 data between archive samples and corresponding in-situ samples for the same dates confirm that the archive samples are both representative and stable over time. Samples were analyzed by gas chromatography-mass spectrometry (GC-MS), using a KCl-passivated alumina PLOT column. Fluoroform was monitored on mass 69 (CF3+). The analytical precision (one standard deviation of the mean) for two or three replicate analyses was typically ± 1% of the mean measured value. The overall uncertainty of the observed data is ± 10%, taking into account uncertainties in the preparation of the primary standards, the purity of the fluoroform used to make the primary standards, as well as the analytical precision.},
doi = {10.3334/CDIAC/ATG.003},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {10}
}