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New matrix-free reference material for ethene in the form of optical fibres

Abstrakt

Reference materials are indispensable in the qualitycontrol and quality assurance of analytical measurements. Onenovel approach to the generation of standard gaseous mixturesof toxic, reactive, volatile, labile, and malodorous substancesinvolves thermal decomposition or rearrangement, under definedtemperature conditions, of compounds immobilized, bychemical bonding, on the surface of an appropriate carrier torelease specific amounts of a volatile compound. In this techniquethe type of support used to immobilize the compound isextremely important, because the amount of analyte releaseddepends directly on the choice of material. In this paper wereport the novel preparation of a matrix-free ethene standard inthe form of glass fibres coated with a thin layer of aluminium,the surface of which is modified by reaction with a specificcompound. As a result of thermal decomposition of this compound,gaseous ethene is formed. In this paper we present theresults obtained from tests of stability and homogeneity, twoproperties of crucial importance in the preparation of referencematerials, by comparison of a series of results obtained forrandomly chosen samples of the reference material. Interlaboratorycomparative studies resulted in determination of a referencevalue for the ethene formed after thermal decompositionof the surface compound ((2.12±0.14) ng per fibre).

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Accepted albo Published Version
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s00216-012-6575-5
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Creative Commons: CC-BY otwiera się w nowej karcie

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
ANALYTICAL AND BIOANALYTICAL CHEMISTRY nr 405, strony 1773 - 1778,
ISSN: 1618-2642
Język:
angielski
Rok wydania:
2013
Opis bibliograficzny:
Słomińska M., Konieczka P., Namieśnik J.: New matrix-free reference material for ethene in the form of optical fibres// ANALYTICAL AND BIOANALYTICAL CHEMISTRY. -Vol. 405, nr. iss. 5 (2013), s.1773-1778
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1007/s00216-012-6575-5
Weryfikacja:
Politechnika Gdańska

wyświetlono 69 razy

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