Isotopic analysis of plutonium in foods by inductively-coupled plasma mass spectrometry

被引：3

作者：

Emanuele, Kathryn ^{[1
]}

Lin, Zhichao ^{[1
]}

Healey, Stephanie ^{[1
]}

Shareef, Abdur-Rafay ^{[1
]}

Regan, Patrick ^{[1
]}

机构：

[1] US FDA, Winchester Engn & Analyt Ctr, 109 Holton St, Winchester, MA 01890 USA

来源：

APPLIED RADIATION AND ISOTOPES | 2017年 / 126卷

关键词：

Plutonium isotopes; Food contamination; Rapid method; ICPMS; Emergency response; Extraction resin; ICP-MS; EXTRACTION; ACTINIDES; RATIOS;

D O I：

10.1016/j.apradiso.2017.01.043

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Pu isotopes in various foods were detected using a quadrupole ICPMS and Aridus II desolvation nebulizer. The method has ability to detect Pu-239 and Pu-240 at concentrations of similar to 52 pg/kg (0.12 Bq/kg) and similar to 9.5 pg/kg (0.08 Bq/kg) as well as Pu-240/Pu-239 ratio in < 8 h after receiving the samples. Foods were wet-ashed followed by DGA extraction for eliminating matrix, isobaric, and polyatomic interferences. A UH+ formation rate < 10(-5) and a 5-fold enhanced sensitivity for Pu was achieved after system optimization.

引用

页码：40 / 43

页数：4

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