Počet záznamů: 1
Elemental characterization of the new Czech meteorite "Morávka" by neutron and photon activation analysis
- 1.
SYSNO ASEP 0185791 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Elemental characterization of the new Czech meteorite "Morávka" by neutron and photon activation analysis Tvůrce(i) Řanda, Zdeněk (UJF-V) RID
Kučera, Jan (UJF-V) RID, ORCID, SAI
Soukal, Ladislav (UJF-V)Zdroj.dok. Journal of Radioanalytical and Nuclear Chemistry. - : Springer - ISSN 0236-5731
Roč. 257, č. 2 (2003), s. 275-283Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. HU - Maďarsko Klíč. slova Czech meteorite ; photon activation analysis Vědní obor RIV DD - Geochemie CEZ AV0Z1048901 - UJF-V Anotace Forty two major, minor and some trace elements were determined by activation analysis in the new Czech Morávka H5 chondrite, which fell on May 6, 2000 in the vicinity of Morávka, north-east Moravia. The elements Na, Mg, Al, Si, Cl, Ca, Ti, V, Mn, Co, Ni, and Cu were determined by means of instrumental short-time neutron activation analysis (INAA), whereas another group of elements, namely Sc, Cr, Fe, Co, Ni, Zn, As, Se, Br, Sb, La, Sm, Ir, Au and Hg were assayed using long-time INAA. Most of the rare earth elements (REE) were determined by radiochemical neutron activation analysis (RNAA) using precipitation of their oxalates, whilst for the determination of Rg and Cs and RNAA procedure based on selective sorption of the elements on ammonium phosphomolybdenate was employed. Mg, Ca, Ti, Mn, Ni, Sr, Y and Zr were determined by instrumental photon neutron activation analysis (IPAA) using the irradiation with 20 MeV bremsstrahlung from a microtron. For quality control, The U.S. Geological Survey (USGS) reference rocks basalt BCR-1 and diabase W-1 were analyzed. Moreover, the self-verification principle in activation analysis was employed to increase the credibility of the obtained resulst. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2004
Počet záznamů: 1