Standard mixtures of ambient volatile organic compounds in synthetic and whole air with stable reference values
Research into the role of volatile organic compounds (VOCs) in the chemistry of the lower atmosphere has led to requirements for stable and accurate standard gas mixtures to underpin long‐term monitoring of global background and polluted urban concentrations. We describe a novel method for the prepa...
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| Veröffentlicht in: | Journal of Geophysical Research: Atmospheres 2010-07, Vol.115 (D14), p.n/a |
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| container_title | Journal of Geophysical Research: Atmospheres |
| container_volume | 115 |
| creator | Grenfell, R. J. P. Milton, M. J. T. Harling, A. M. Vargha, G. M. Brookes, C. Quincey, P. G. Woods, P. T. |
| description | Research into the role of volatile organic compounds (VOCs) in the chemistry of the lower atmosphere has led to requirements for stable and accurate standard gas mixtures to underpin long‐term monitoring of global background and polluted urban concentrations. We describe a novel method for the preparation of standard mixtures containing thirty compounds in matrices of nitrogen and whole air. The estimated uncertainty in the amount fractions of the compounds in these mixtures is typically 2% (relative) and typical stability is better than 0.2% per annum. We also report the results of a comparison exercise between eight laboratories using these mixtures, which indicate that typical uncertainties achievable by laboratories making measurements of these compounds are better than demonstrated previously. |
| doi_str_mv | 10.1029/2009JD012933 |
| format | Article |
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J. P. ; Milton, M. J. T. ; Harling, A. M. ; Vargha, G. M. ; Brookes, C. ; Quincey, P. G. ; Woods, P. T.</creator><creatorcontrib>Grenfell, R. J. P. ; Milton, M. J. T. ; Harling, A. M. ; Vargha, G. M. ; Brookes, C. ; Quincey, P. G. ; Woods, P. T.</creatorcontrib><description>Research into the role of volatile organic compounds (VOCs) in the chemistry of the lower atmosphere has led to requirements for stable and accurate standard gas mixtures to underpin long‐term monitoring of global background and polluted urban concentrations. We describe a novel method for the preparation of standard mixtures containing thirty compounds in matrices of nitrogen and whole air. The estimated uncertainty in the amount fractions of the compounds in these mixtures is typically 2% (relative) and typical stability is better than 0.2% per annum. 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J. P.</creatorcontrib><creatorcontrib>Milton, M. J. T.</creatorcontrib><creatorcontrib>Harling, A. M.</creatorcontrib><creatorcontrib>Vargha, G. M.</creatorcontrib><creatorcontrib>Brookes, C.</creatorcontrib><creatorcontrib>Quincey, P. G.</creatorcontrib><creatorcontrib>Woods, P. T.</creatorcontrib><title>Standard mixtures of ambient volatile organic compounds in synthetic and whole air with stable reference values</title><title>Journal of Geophysical Research: Atmospheres</title><addtitle>J. Geophys. Res</addtitle><description>Research into the role of volatile organic compounds (VOCs) in the chemistry of the lower atmosphere has led to requirements for stable and accurate standard gas mixtures to underpin long‐term monitoring of global background and polluted urban concentrations. We describe a novel method for the preparation of standard mixtures containing thirty compounds in matrices of nitrogen and whole air. The estimated uncertainty in the amount fractions of the compounds in these mixtures is typically 2% (relative) and typical stability is better than 0.2% per annum. 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| identifier | ISSN: 0148-0227 |
| ispartof | Journal of Geophysical Research: Atmospheres, 2010-07, Vol.115 (D14), p.n/a |
| issn | 0148-0227 2169-897X 2156-2202 2169-8996 |
| language | eng |
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| source | Access via Wiley Online Library; Wiley-Blackwell AGU Digital Library; Wiley Online Library (Open Access Collection); Alma/SFX Local Collection |
| subjects | Air pollution atmospheric monitoring Atmospheric sciences Earth sciences Earth, ocean, space Exact sciences and technology Geophysics Mathematical analysis Matrices Monitoring Organic compounds ozone precursors Scientific apparatus & instruments standard gas mixtures Troposphere Uncertainty VOCs Volatile organic compounds |
| title | Standard mixtures of ambient volatile organic compounds in synthetic and whole air with stable reference values |
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