Simultaneous analysis of 137Cs, 90Sr, 238PU and 239+240Pu in Brazilian seawater

被引：5

作者：

Figueira, RCL

Saraiva, ESBG

Cunha, IIL

机构：

[1] Univ Cruzeiro Sul, BR-05422970 Sao Paulo, Brazil

[2] Univ Sao Paulo, IO, BR-05422970 Sao Paulo, Brazil

[3] IPEN, Div Radiochem, BR-05422970 Sao Paulo, Brazil

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2001年 / 248卷 / 03期

关键词：

Radionuclide; Plutonium; Seawater Sample; Minimum Detectable Concentration; 137Cs Level;

D O I：

10.1023/A:1010673602722

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Methodologies for simultaneous analysis of Cs-137, Sr-90 Pu-238 and Pu239+240 were developed and applied to seawater samples. Cs-137 levels in Brazilian coastal seawater ranged from 0.12 to 4.7 Bq(.)m(-3), for Sr-90 from 2.0 to 8.6 Bq(.)m(-3), for Pu239+240 from 0.8 to 4.5 mBq(.)m(-3) and for (238)pU it was of 1.9 mBq(.)m(-3). The artificial radioactivity levels in Brazilian seawater are typical values due to fallout deposition.

引用

页码：801 / 804

页数：4