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Sequential Injection Approach for Simultaneous Determination ofUltratrace Plutonium and Neptunium in Urine with Accelerator MassSpectrometry
Qiao,JX(Qiao,Jixin)[1]; Hou,XL(Hou,Xiaolin)[1,2]; Roos,P(Roos,Per)[1]; Lachner,J(Lachner,Johannes)[3]; Christl,M(Christl,Marcus)[3]; Xu,YH(Xu,Yihong)[1,4]
2013
Source Publicationanalytical chemistry
Volume85Pages:8826-8833
Subtype期刊论文
AbstractAn analytical method was developed for simultaneous determination of ultratrace level plutonium (Pu) and neptunium (Np) using iron hydroxide coprecipitation in combination with automated sequential injection extraction chromatography separation and accelerator mass spectrometry (AMS) measurement. Several experimental parameters affecting the analytical performance were investigated and compared including sample preboiling operation, aging time, amount of coprecipitating reagent, reagent for pH adjustment, sedimentation time, and organic matter decomposition approach. The overall analytical results show that preboiling and aging are important for obtaining high chemical yields for both Pu and Np, which is possibly related to the aggregation and adsorption behavior of organic substances contained in urine. Although the optimal condition for Np and Pu simultaneous determination requires 5-day aging time, an immediate coprecipitation without preboiling and aging could also provide fairly satisfactory chemical yields for both Np and Pu (50−60%) with high sample throughput (4 h/sample). Within the developed method, 242Pu was exploited as chemical yield tracer for both Pu and Np isotopes. 242Pu was also used as a spike in the AMS measurement for quantification of 239Pu and 237Np concentrations. The results show that, under the optimal experimental condition, the chemical yields of 237Np and 242Pu are nearly identical, indicating the high feasibility of 242Pu as a nonisotopic tracer for 237Np determination in real urine samples. The analytical method was validated by analysis of a number of urine samples spiked with different levels of 237Np and 239Pu. The measured values of 237Np and 239Pu by AMS exhibit good agreement (R2 ≥ 0.955) with the spiked ones confirming the reliability of the proposed method.
DOI10.1021/ac4020319
Indexed BySCI
Language英语
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10880
Collection加速器质谱中心
Corresponding AuthorQiao,JX(Qiao,Jixin)[1]
Affiliation1.Center for Nuclear Technologies, Technical University of Denmark, DTU Risø Campus, DK-4000 Roskilde, Denmark;
2.Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, China;
3.Laboratory of Ion Beam Physics, ETH-Zurich, CH-8093 Zurich, Switzerland;
4.The Key Laboratory of Coastal and Island Development of Ministry of Education, Nanjing University, Nanjing 210093, China
Recommended Citation
GB/T 7714
Qiao,JX,Hou,XL,Roos,P,et al. Sequential Injection Approach for Simultaneous Determination ofUltratrace Plutonium and Neptunium in Urine with Accelerator MassSpectrometry[J]. analytical chemistry,2013,85:8826-8833.
APA Qiao,JX,Hou,XL,Roos,P,Lachner,J,Christl,M,&Xu,YH.(2013).Sequential Injection Approach for Simultaneous Determination ofUltratrace Plutonium and Neptunium in Urine with Accelerator MassSpectrometry.analytical chemistry,85,8826-8833.
MLA Qiao,JX,et al."Sequential Injection Approach for Simultaneous Determination ofUltratrace Plutonium and Neptunium in Urine with Accelerator MassSpectrometry".analytical chemistry 85(2013):8826-8833.
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