Fate of free selenium atoms in externally heated quartz tube atomizers for hydride generation atomic absorption spectometry and their reatomization at tube ends studied by means of the determination of longitudinal free atom distribution

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SYSNO ASEP	0162227
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Ostatní články
Title	Fate of free selenium atoms in externally heated quartz tube atomizers for hydride generation atomic absorption spectometry and their reatomization at tube ends studied by means of the determination of longitudinal free atom distribution
Author(s)	Matoušek, Tomáš (UIACH-O)_{RID, ORCID} Dědina, Jiří (UIACH-O)_{RID, ORCID}
Source Title	Spectrochimica Acta Part B: Atomic Spectroscopy. - : Elsevier - ISSN 0584-8547 Roč. 55, - (2000), s. 545-557
Number of pages	3 s.
Language	eng - English
Country	NL - Netherlands
Subject RIV	CB - Analytical Chemistry, Separation
R&D Projects	GA203/98/0754 GA ČR - Czech Science Foundation (CSF)
	KSK2055603 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
Annotation	Longitudinal distribution of Se free atoms in heated quartz tube hydride atomizers was studied under analytical conditions. The free atom decay rate is greatly enhanced at higher analyte concentrations, which is a source of calibration curvature. The presence of zones where once reacted atoms are reatomized at the tube ends was directly proven: the sensitivity is improved and calibration bending is attenuated. Recommendations concerning the quartz tube design and dimensions are given.
Workplace	Institute of Analytical Chemistry
Contact	Iveta Drobníková, drobnikova@iach.cz, Tel.: 532 290 234
Year of Publishing	2001

Number of the records: 1