Abstract
Gas phase standards, containing CCl3F (CFC-11), CCl2F2 (CFC-12), CCl2FCClF2 (CFC-113), CH3CCl3 and CCl4 in the pmol mol-1 range, were prepared gravimetrically in dry N2. The standards were prepared with the relative ratios of the various compounds close to those found in seawater, to facilitate calibration of oceanic halocarbon measurements. The standards made in this study were intercalibrated against an atmospheric-ratio-based standard that was analyzed at both Scripps Institution of Oceanography (SIO) and NOAA's Climate Monitoring and Diagnostics Laboratory (CMDL). A total of 21 standards was made, with the concentrations of the above halocarbons reported on both the CMDL and SIO 1993 scales. These standards are currently being used by ten different research groups making oceanic halocarbon measurements. The average systematic deviation of all compounds in our standards was generally ±5% or less from the SIO 1993 and CMDL scales. Deviations for CH3CCl3 between our standards and the CMDL scale were slightly larger, with our standards, on average, approximately 10% lower.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1725-1738 |
| Number of pages | 14 |
| Journal | Deep-Sea Research Part I: Oceanographic Research Papers |
| Volume | 44 |
| Issue number | 9-10 |
| DOIs | |
| State | Published - Sep 1997 |
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ASJC Scopus subject areas
- Aquatic Science
- Geology
- Oceanography
Cite this
Gravimetric preparation of gas phase working standards contain6ing volatile halogenated compounds for oceanographic applications. / Happell, James D; Wallace, D. W R.
In: Deep-Sea Research Part I: Oceanographic Research Papers, Vol. 44, No. 9-10, 09.1997, p. 1725-1738.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Gravimetric preparation of gas phase working standards contain6ing volatile halogenated compounds for oceanographic applications
AU - Happell, James D
AU - Wallace, D. W R
PY - 1997/9
Y1 - 1997/9
N2 - Gas phase standards, containing CCl3F (CFC-11), CCl2F2 (CFC-12), CCl2FCClF2 (CFC-113), CH3CCl3 and CCl4 in the pmol mol-1 range, were prepared gravimetrically in dry N2. The standards were prepared with the relative ratios of the various compounds close to those found in seawater, to facilitate calibration of oceanic halocarbon measurements. The standards made in this study were intercalibrated against an atmospheric-ratio-based standard that was analyzed at both Scripps Institution of Oceanography (SIO) and NOAA's Climate Monitoring and Diagnostics Laboratory (CMDL). A total of 21 standards was made, with the concentrations of the above halocarbons reported on both the CMDL and SIO 1993 scales. These standards are currently being used by ten different research groups making oceanic halocarbon measurements. The average systematic deviation of all compounds in our standards was generally ±5% or less from the SIO 1993 and CMDL scales. Deviations for CH3CCl3 between our standards and the CMDL scale were slightly larger, with our standards, on average, approximately 10% lower.
AB - Gas phase standards, containing CCl3F (CFC-11), CCl2F2 (CFC-12), CCl2FCClF2 (CFC-113), CH3CCl3 and CCl4 in the pmol mol-1 range, were prepared gravimetrically in dry N2. The standards were prepared with the relative ratios of the various compounds close to those found in seawater, to facilitate calibration of oceanic halocarbon measurements. The standards made in this study were intercalibrated against an atmospheric-ratio-based standard that was analyzed at both Scripps Institution of Oceanography (SIO) and NOAA's Climate Monitoring and Diagnostics Laboratory (CMDL). A total of 21 standards was made, with the concentrations of the above halocarbons reported on both the CMDL and SIO 1993 scales. These standards are currently being used by ten different research groups making oceanic halocarbon measurements. The average systematic deviation of all compounds in our standards was generally ±5% or less from the SIO 1993 and CMDL scales. Deviations for CH3CCl3 between our standards and the CMDL scale were slightly larger, with our standards, on average, approximately 10% lower.
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UR - http://www.scopus.com/inward/citedby.url?scp=0030862471&partnerID=8YFLogxK
U2 - 10.1016/S0967-0637(97)00035-6
DO - 10.1016/S0967-0637(97)00035-6
M3 - Article
AN - SCOPUS:0030862471
VL - 44
SP - 1725
EP - 1738
JO - Deep-Sea Research Part I: Oceanographic Research Papers
JF - Deep-Sea Research Part I: Oceanographic Research Papers
SN - 0967-0637
IS - 9-10
ER -