Linked Life Data

12911150

Source:http://linkedlifedata.com/resource/pubmed/id/12911150

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5-6
pubmed:dateCreated
2003-8-12
pubmed:abstractText
The present work deals with the evaluation of measurement uncertainty in the determination of carbon dioxide (CO2) concentration in atmosphere, given the high relevance of this greenhouse gas that influences earth climate. In order to carry out CO2 measurements, non dispersive infrared (NDIR) analysers are usually employed as they are stable and scarcely affected by interferences from other air components or pollutants. Typical uncertainty sources are the resolution of the analyser, its time drift and the contributions due to instrument calibration, which is required in order to produce traceable measurement results. The calibration uncertainty takes into account the uncertainty of the composition of the calibration gas mixtures, the instrument repeatability and the possible or residual lack of fit of the adopted mathematical model.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0003-4592
pubmed:author
pubmed:issnType
Print
pubmed:volume
93
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
583-7
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:articleTitle
Uncertainty estimation in chemical measurements: carbon dioxide determination at atmospheric concentration.
pubmed:affiliation
Istituto di Metrologia Gustavo Colonnetti-Consiglio Nazionale delle Ricerche Strada delle Cacce 73, 10135 Torino. e.amicodimeane@imgc.cnr.it
pubmed:publicationType
Journal Article