کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1243300 1495776 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simultaneous determination of the quantity and isotopic ratios of uranium in individual micro-particles by isotope dilution thermal ionization mass spectrometry (ID-TIMS)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Simultaneous determination of the quantity and isotopic ratios of uranium in individual micro-particles by isotope dilution thermal ionization mass spectrometry (ID-TIMS)
چکیده انگلیسی


• A method to determine the quantity and the isotopic ratios of uranium simultaneously was developed.
• A mathematical model under a reasonable assumption was setup to determine isotopic ratios of uranium.
• Verification of the applicability of the method was performed.
• We revealed that the proposed method is useful for particle analysis.

A method to determine the quantity and isotopic ratios of uranium in individual micro-particles simultaneously by isotope dilution thermal ionization mass spectrometry (ID-TIMS) has been developed. This method consists of sequential sample and spike loading, ID-TIMS for isotopic measurement, and application of a series of mathematical procedures to remove the contribution of uranium in the spike. The homogeneity of evaporation and ionization of uranium content was confirmed by the consistent ratio of n(233U)/n(238U) determined by TIMS measurements. Verification of the method was performed using U030 solution droplets and U030 particles. Good agreements of resulting uranium quantity, n(235U)/n(238U), and n(236U)/n(238U) with the estimated or certified values showed the validity of this newly developed method for particle analysis when simultaneous determination of the quantity and isotopic ratios of uranium is required.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 160, 1 November 2016, Pages 600–606
نویسندگان
, ,