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
收藏
页码：40 / 43
页数：4
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