Analytical Science and Technology (분석과학)
- Volume 8 Issue 1
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- Pages.41-45
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- 1995
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- 1225-0163(pISSN)
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- 2288-8985(eISSN)
Fluorescence Signal Analysis of Mixed Rare Earth Elements by Nonlinear Fitting Method
비선형 Fitting법에 의한 희토류 혼합물의 형광신호 분석
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Kim, Dukhyeon
(Korea Atomic Energy Research Institute) ;
-
Shin, Jangsoo
(Korea Atomic Energy Research Institute) ;
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Song, Kyuseok
(Korea Atomic Energy Research Institute) ;
-
Cha, Hyungki
(Korea Atomic Energy Research Institute) ;
- Lee, Jongmin (Korea Atomic Energy Research Institute)
- Received : 1994.12.21
- Published : 1995.03.25
Abstract
To analyze mixed rare earth elements quantitatively a nonlinear fitting method was applied to laser induced fluorescence signals. Mixed flourescence signal of two elements, Sm and Eu were resolved independently and determined the concentration of these two elements simultaneously. It was found that detection limit for each element in the mixture was sub-ppb level which was the same as that of the single element sample. Additionally it was found that lifetimes of Sm and Eu extracted from the nonlinear fitting method is the same as in the single element cases.
혼합된 희토류 원소의 농도를 정량적으로 분석하기 위하여 형광신호를 비선형 fitting하는 방법을 사용하였다. 본 연구에서는 Sm과 Eu 두 희토류 원소의 혼합된 형광을 비선형 fitting법으로 분리하여 그 농도를 분석하였다. 분석결과 감도면에서 한 가지 시료만 존재할 경우와 같은 정도인 sub-ppb의 검출한계를 나타냈으며, 혼합물에서 비선형 fitting법에 의해 얻어진 각 원소의 형광수명은 단일 원소만 존재하는 경우와 동일한 결과를 나타냄을 알 수 있었다.
Keywords