KFU. Card publication. Shadow spectral imaging of absorbing layers in transversely heated graphite atomizer Part 1. Analyte atoms

KAZAN
FEDERAL UNIVERSITY

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SHADOW SPECTRAL IMAGING OF ABSORBING LAYERS IN TRANSVERSELY HEATED GRAPHITE ATOMIZER PART 1. ANALYTE ATOMS

Form of presentation

Articles in international journals and collections

Year of publication

2005

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Authors, employees of KFU

Voloshin Aleksandr Viktorovich, author

Gilmutdinov Albert Kharisovich, author

Zakharov Yuriy Anatolevich, author

Bibliographic description in the original language

Gilmutdinov A.Kh. Shadow spectral imaging of absorbing layers in transversely heated graphite atomizer Part 1. Analyte atoms [Text]/ A.Kh. Gilmutdinov, A.V. Voloshin, Yu.A. Zakharov // Spectrochimica Acta Part B. 2005. - V.60. - P511-518

Annotation

The technique of shadow spectral imaging was used to investigate dynamics of formation and dissipation of Ag, In, Ga, Bi, Mn, Cu and Tl atomic layers in a transversely heated graphite tube atomizer (THGA) with and without integrated platform under gas-stop and gas-flow conditions. It is shown that non-uniform heating of the tube walls and platform surface in the radial cross section is the main reason for analyte transfer from atomizer bottom to less heated sides of the tube and platform before atomization temperature is reached. This transfer in the atomizer transverse cross section can be an additional factor that reduces matrix interferences in the THGA. In all the investigated cases, the atomic absorbing layers are not spatially uniform. Absorbance gradients grow up to 0.2 mm(-1) even in the case of chemically inert silver atomization. Inverse atomization of In, Bi, Ga and Tl when atoms first appear in the atomizer's upper part was detected in THGA with platform.

Keywords

Atomic absorption spectrometry, transversely heated graphite atomizer, THGA, shadow spectral imaging, atomic vapors

The name of the journal

SPECTROCHIM ACTA B

URL

http://www.sciencedirect.com/science/article/pii/S0584854705000741

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=4226&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Voloshin Aleksandr Viktorovich	ru_RU
dc.contributor.author	Gilmutdinov Albert Kharisovich	ru_RU
dc.contributor.author	Zakharov Yuriy Anatolevich	ru_RU
dc.date.accessioned	2005-01-01T00:00:00Z	ru_RU
dc.date.available	2005-01-01T00:00:00Z	ru_RU
dc.date.issued	2005	ru_RU
dc.identifier.citation	Gilmutdinov A.Kh. Shadow spectral imaging of absorbing layers in transversely heated graphite atomizer Part 1. Analyte atoms [Text]/ A.Kh. Gilmutdinov, �.V. Voloshin, Yu.A. Zakharov // Spectrochimica Acta Part B. 2005. - V.60. - P511-518	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=4226&p_lang=2	ru_RU
dc.description.abstract	SPECTROCHIM ACTA B	ru_RU
dc.description.abstract	The technique of shadow spectral imaging was used to investigate dynamics of formation and dissipation of Ag, In, Ga, Bi, Mn, Cu and Tl atomic layers in a transversely heated graphite tube atomizer (THGA) with and without integrated platform under gas-stop and gas-flow conditions. It is shown that non-uniform heating of the tube walls and platform surface in the radial cross section is the main reason for analyte transfer from atomizer bottom to less heated sides of the tube and platform before atomization temperature is reached. This transfer in the atomizer transverse cross section can be an additional factor that reduces matrix interferences in the THGA. In all the investigated cases, the atomic absorbing layers are not spatially uniform. Absorbance gradients grow up to 0.2 mm(-1) even in the case of chemically inert silver atomization. Inverse atomization of In, Bi, Ga and Tl when atoms first appear in the atomizer's upper part was detected in THGA with platform.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Atomic absorption spectrometry	ru_RU
dc.subject	transversely heated graphite atomizer	ru_RU
dc.subject	THGA	ru_RU
dc.subject	shadow spectral imaging	ru_RU
dc.subject	atomic vapors	ru_RU
dc.title	Shadow spectral imaging of absorbing layers in transversely heated graphite atomizer Part 1. Analyte atoms	ru_RU
dc.type	Articles in international journals and collections	ru_RU