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The Challenge of Developing Primary Standards Mixtures of Carbon Dioxide at Atmospheric Levels to Establish Traceability to GHG Monitoring Analysis

The Challenge of Developing Primary Standards Mixtures of Carbon Dioxide at Atmospheric Levels to Establish Traceability to GHG Monitoring Analysis

Andreia de Lima Fioravante, Cristiane Rodrigues Augusto, Valnei Smarçaro da Cunha, Luiz Antonio d'Avila
Copyright: © 2017 |Volume: 6 |Issue: 2 |Pages: 15
ISSN: 2156-1737|EISSN: 2156-1729|EISBN13: 9781522515067|DOI: 10.4018/IJMTIE.2017070101
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MLA

Fioravante, Andreia de Lima, et al. "The Challenge of Developing Primary Standards Mixtures of Carbon Dioxide at Atmospheric Levels to Establish Traceability to GHG Monitoring Analysis." IJMTIE vol.6, no.2 2017: pp.1-15. http://doi.org/10.4018/IJMTIE.2017070101

APA

Fioravante, A. D., Augusto, C. R., Smarçaro da Cunha, V., & d'Avila, L. A. (2017). The Challenge of Developing Primary Standards Mixtures of Carbon Dioxide at Atmospheric Levels to Establish Traceability to GHG Monitoring Analysis. International Journal of Measurement Technologies and Instrumentation Engineering (IJMTIE), 6(2), 1-15. http://doi.org/10.4018/IJMTIE.2017070101

Chicago

Fioravante, Andreia de Lima, et al. "The Challenge of Developing Primary Standards Mixtures of Carbon Dioxide at Atmospheric Levels to Establish Traceability to GHG Monitoring Analysis," International Journal of Measurement Technologies and Instrumentation Engineering (IJMTIE) 6, no.2: 1-15. http://doi.org/10.4018/IJMTIE.2017070101

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Abstract

This article describes how in recent years the need for the quality control, reliability and traceability of analytical results has been strongly emphasised. The National Institute of Metrology, Quality and Technology, is involved in improving calibration and measurement capabilities to provide high confidence level in accordance with the latest regulation regarding greenhouse gases standards. This article describes the gravimetric production of certified gaseous reference materials of carbon dioxide in atmospheric synthetic air that are used to monitor its concentration in the atmosphere. Considering the contributions from gravimetry preparation and its verification analysis by cavity ringdown system (CRDS) the relative expanded uncertainty of the standard mixture of carbon dioxide was lower than 0.5% for the range studied from 370 to 550 μmol/mol, which is comparable to the average of 0,25% relative uncertainties presented on international standards mixtures.

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