Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Determination of I-129 in seawater and some environmental materials by neutron activation analysis
Autore:
Hou, XL; Dahlgaard, H; Rietz, B; Jacobsen, U; Nielsen, SP; Aarkrog, A;
Indirizzi:
Riso Natl Lab, DK-4000 Roskilde, Denmark Riso Natl Lab Roskilde Denmark DK-4000 tl Lab, DK-4000 Roskilde, Denmark
Titolo Testata:
ANALYST
fascicolo: 7, volume: 124, anno: 1999,
pagine: 1109 - 1114
SICI:
0003-2654(199907)124:7<1109:DOIISA>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUCLEAR; SAMPLES; I-131; IODINE; SOIL; THYROIDS; ACCIDENT; TRACER; MILK;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Hou, XL Riso Natl Lab, POB 49, DK-4000 Roskilde, Denmark Riso Natl Lab POB49 Roskilde Denmark DK-4000 0 Roskilde, Denmark
Citazione:
X.L. Hou et al., "Determination of I-129 in seawater and some environmental materials by neutron activation analysis", ANALYST, 124(7), 1999, pp. 1109-1114

Abstract

A neutron activation analysis method with pre-irradiation separation and post-irradiation purification is presented for the determination of I-129 content and I-129/I-127 ratio in some environmental samples, such as seawater, seaweed, grass and soil. An evaporation concentration followed by solventextraction was used for the separation of iodine from seawater, and alkaline ashing or alkaline fusion followed by water leaching and solvent extraction for vegetation and soil samples. A further post-irradiation purification of iodine was carried out by extraction and PdI2 precipitation. The concentrations of I-129 and I-127 were then measured by counting I-130 and I-126, respectively. The recoveries of iodine reach 60-95% and more than 98% in pre-concentration and post-irradiation purification procedures, respectively, The detection limit of this method for I-129 reached 2-3 x 10(-13) g. Some samples collected in Denmark and Iceland were analysed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 08:19:16