Development of a NIST standard reference material containing thirty volatile organic compounds at 5 nmol/mol in nitrogen

Analytical Chemistry
George C Rhoderick, James Yen

Abstract

Primary gravimetric gas cylinder standards containing 30 volatile organic compounds (VOCs) in nitrogen were prepared using a procedure previously developed to prepare gas mixture cylinder standards of VOCs at the 5 nmol/mol level. This set of primary standards was intercompared to existing gas cylinder standards, containing as many as 19 of the 30 volatile organics present in these new primaries, using gas chromatography with a hydrogen flame ionization detector coupled with cryogenic preconcentration. The linear regression analysis showed excellent agreement among the standards for each compound. Similar mixtures containing many of these compounds in treated aluminum gas cylinders have been evaluated over time and have shown stability for as much as 10 years. The development of these 30-component primary standards led to the preparation and certification of a reissue of Standard Reference Material (SRM) 1804 at the nominal amount-of-substance fraction of 5 nmol/mol for each analyte. A lot of 20 cylinders containing the mixture was prepared at NIST following previously demonstrated protocols for preparation of the cylinders. Each cylinder was analyzed against one cylinder from the lot, designated as the "lot standard," for each...Continue Reading

Citations

Sep 4, 2010·Se pu = Chinese journal of chromatography·Ning LiZhongxiang Wu
Sep 9, 2017·Environmental Science and Pollution Research International·Ning LiWen Tian
Mar 23, 2019·Physical Chemistry Chemical Physics : PCCP·Cristina Sanz-Sanz, Graham A Worth
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Jan 1, 2019·Elementa : Science of the Anthropocene·George C RhoderickJianrong Li
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