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不同内壁处理的气瓶中气态挥发性有机化合物的稳定性

Stability of gaseous volatile organic compounds contained in gas cylinders with different internal wall treatments.

作者信息

Rhoderick George C, Cecelski Christina E, Miller Walter R, Worton David R, Moreno Sergi, Brewer Paul J, Viallon Joële, Idrees Faraz, Moussay Philippe, Kim Yong Doo, Kim Dalho, Lee Sangil, Baldan Annarita, Li Jianrong

机构信息

National Institute of Standards and Technology (NIST), Gaithersburg, Maryland, US.

National Physical Laboratory (NPL), Teddington, Middlesex, UK.

出版信息

Elementa (Wash D C). 2019;7. doi: 10.1525/elementa.366.

DOI:10.1525/elementa.366
PMID:32118079
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7047742/
Abstract

Measurements of volatile organic compounds (VOCs) have been ongoing for decades to track growth rates and assist in curbing emissions of these compounds into the atmosphere. To accurately establish mole fraction trends and assess the role of these gas-phase compounds in atmospheric chemistry it is essential to have good calibration standards. A necessity and precursor to accurate VOC gas standards are the gas cylinders and the internal wall treatments that aid in maintaining the stability of the mixtures over long periods of time, measured in years. This paper will discuss the stability of VOC gas mixtures in different types of gas cylinders and internal wall treatments. Stability data will be given for 85 VOCs studied in gas mixtures by National Metrology Institutes and other agency laboratories. This evaluation of cylinder treatment materials is the outcome of an activity of the VOC Expert Group within the framework of the World Meteorological Organization (WMO) Global Atmospheric Watch (GAW) program.

摘要

对挥发性有机化合物（VOCs）的测量已经持续了几十年，以跟踪其增长率并协助控制这些化合物向大气中的排放。为了准确确定摩尔分数趋势并评估这些气相化合物在大气化学中的作用，拥有良好的校准标准至关重要。准确的VOC气体标准的必要条件和前提是气瓶以及有助于长时间（以年为单位测量）保持混合物稳定性的内壁处理。本文将讨论不同类型气瓶和内壁处理中VOC气体混合物的稳定性。将给出国家计量机构和其他机构实验室对气体混合物中研究的85种VOCs的稳定性数据。对气瓶处理材料的这种评估是世界气象组织（WMO）全球大气观测（GAW）计划框架内VOC专家组一项活动的成果。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4153/7047742/87cf5f04b7b4/nihms-1541664-f0018.jpg
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Stability assessment of gas mixtures containing monoterpenes in varying cylinder materials and treatments.不同钢瓶材料和处理方式中含单萜的混合气体稳定性评估。
Anal Chem. 2013 May 7;85(9):4675-85. doi: 10.1021/ac400324v. Epub 2013 Apr 24.
8
Stability assessment of gas mixtures containing terpenes at nominal 5 nmol/mol contained in treated aluminum gas cylinders.含萜类气体混合物在处理过的铝制气瓶中以标称 5 nmol/mol 含量的稳定性评估。
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9
Development of a NIST standard reference material containing thirty volatile organic compounds at 5 nmol/mol in nitrogen.一种含有30种挥发性有机化合物、在氮气中浓度为5 nmol/mol的美国国家标准与技术研究院标准参考物质的研制。
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Long-term stability of hydrocarbons in NIST gas standard reference material (SRM) 1800.美国国家标准与技术研究院（NIST）气体标准参考物质（SRM）1800中烃类的长期稳定性
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