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논문 기본 정보

자료유형
학술저널
저자정보
강지환 (충남대학교) 김미언 (한국표준과학연구원) 김용두 (한국표준과학연구원) 이영우 (충남대학교) 이상일 (한국표준과학연구원)
저널정보
한국대기환경학회 한국대기환경학회지(국문) 한국대기환경학회지 제32권 제3호
발행연도
2016.6
수록면
320 - 328 (9page)

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Among biogenic volatile organic compounds (BVOCs) in the natural ecosystem, monoterpenes, along with isoprene, play important roles in atmospheric chemistry and make significant impacts on air pollution and climate change, especially due to their contribution to secondary organic aerosol production and photochemical ozone formation. It is essential to measure monoterpene concentrations accurately for understanding their oxidation processes, emission processes and estimation, and interactions between biosphere and atmosphere. Thus, traceable calibration standards are crucial for the accurate measurement of monoterpenes at ambient levels. However, there are limited information about developing calibrations standards for monoterpenes in pressured cylinders. This study describes about developing primary standard gas mixtures (PSMs) for monoterpenes at about 2 nmol/mol, near ambient levels. The micro-gravimetric method was applied to prepare monoterpene (α-pinene, 3-carene, R-(+)- limonene, 1,8-cineole) PSMs at 10 μmol/mol and then the PSMs were further diluted to 2 nmol/mol level. To select an optimal cylinder for the development of monoterpene PSMs, three different kinds of cylinders were used for the preparation and were evaluated for uncertainty sources including long-term stability. Results showed that aluminum cylinders with a special internal surface treatment (Experis) had little adsorption loss on the cylinder internal surface and good long-term stability compared to two other cylinder types with no treatment and a special treatment (Aculife). Results from uncertainty estimation suggested that monoterpene PSMs can be prepared in pressured cylinders with a special treatment (Experis) at 2 nmol/mol level with an uncertainty of less than 4%.

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Abstract
1. 서론
2. 실험방법
3. 실험결과 및 고찰
4. 결론
References

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UCI(KEPA) : I410-ECN-0101-2017-539-000863726