2005•Analytical Science and TechnologyRequires access
Study in the Measurement of Boron Isotopes by Thermal Ionization Mass Spectrometer
Young Shin Jeon, Kih Soo Joe, Sun Ho Han, Yong Joon Park, Kwang Yong Jee
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Abstract
을 얻었으며 ICP-AES 결과에 비해 좋은 정밀도를 보였다. Abstract:Li2B4O7 and Na2B4O7 were synthesized with boron isotopic standard material for the measurement of boron isotopes of positive ions (PTIMS) such as Li2BO2 + (mass 56, 57) and Na2BO2 + (mass 88, 89) instead of boron mass 10 and 11. The negative ions (NTIMS) such as 10 BO2 - and 11 BO2 - ( mass 42 와 43) were also measured with the same boron isotopic standard material. The precision and accuracy were compared between each method, and prescan of isob aric effect was studied. Good result was obtained from NTIMS method which provided the stable and enough peak intensities with good precision and accuracy. The measurement of boron isotopes were performed in ground water sample with about 8 ng-B (5 μL sample solution) obtained from IAEA for international inter- comparison analysis. The standard deviation was found to be 0.03%. Boron content of this ground water was