Uncertainty of ozone measurements with the primary standard reference photometer (SRP45)

Autor:	James E Norris, Rodrigo Seguel, A G Manuel Leiva, C Consuelo Araya, Carlos A. Mancilla
Rok vydání:	2011
Předmět:	Ozone Traceability Chemistry Uncertainty budget Photometer Atmospheric sciences Analytical Chemistry law.invention chemistry.chemical_compound law Primary standard NIST Reference standards Air quality index
Zdroj:	Talanta. 86:71-81
ISSN:	0039-9140
DOI:	10.1016/j.talanta.2011.08.006
Popis:	A comparison of the ozone primary reference standard photometer serial number 45 (SRP45) against the National Institute of Standards and Technology (NIST) instruments, serial number 0 (SRP0) and 2 (SRP2), has been performed in order to establish the traceability and comparability of ozone measurements made by the Chilean atmospheric science community. A complete uncertainty budget was developed for SRP45, using a GUM approach. The results of the comparisons allow us to conclude that SRP45, SRP0 and SRP2 are comparable according to international criteria over an ozone mole fraction range of 0 nmol mol(-1) to at least 500 nmol mol(-1). The official result for the validation of SRP45 is x(ozone)(SRP45)=[0.013+0.99806x(ozone)(SRP2)] nmol mol(-1) with an expanded uncertainty of [Formula in text] from 0 to 500 nmol mol(-1).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d67b697f9a946e97b62b5bf8783aeebb https://doi.org/10.1016/j.talanta.2011.08.006 Zobrazit plný text záznamu Full Text from ScienceDirect