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KMID : 0385520080210010014
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Analytical Science & Technology
2008 Volume.21 No. 1 p.14 ~ p.19
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Development of certified reference materials for odorous aldehyde
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Kim Yong-Doo
Woo Jin-Chun
Bae Hyun-Kil
Kim Byoung-Moon
Lee Byung-Gil
Heo Gwi-Suk
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Abstract
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Among the many odor materials, aldehyde has bad influences not only on human nose, but also on human health. Aldehyde has a strong odor at infinitesimal level, such as down to ppt concentration. Also aldehydes are highly reactive and have poor stability. Therefore, manufacture of standard gases, analysis of aldehydes are very difficult compare to other air pollution analysis. Aldehyde CRM containing 4 different aldehydes at 10 μ㏖/㏖ (ppm) is developed by using gravimetry method according to ISO 6142 guide. The standard gases were reproduced again, and examined its reproducibility of preparation by GC-FID. The developed aldehyde CRM’s certified value showed a relative expanded uncertainties of 2.11 % (95 % of confidence level, k=2).
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KEYWORD
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Certification of gas CRM, aldehyde, measurement uncertainty, odor
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