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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 39, Number 1
JKCSEZ 39(1)
February 20, 1995 
 
Title
 A New Analytical Method for the Tb+3 and Eu+3 Ions using the Fluorescence Enhancement on the TLC Plate

TLC상에서의 형광증폭을 이용한 Tb+3 과 Eu+3 이온의 미량분석에 관한 연구
Author
 Hyuk jeong*, Gee-Yeoun Lee, Seong-Hee An, Hai-Dong Kim, Won Lee, Dae-Ho Shin

정혁*, 이지연, 안성희, 김해동, 이원, 신대호
Keywords
Abstract
 Tb+3과 Eu+3 이온의 특성 형광선의 세기가 TLC상에서 증폭되는 현상을 이용한 고감도의 미량분석법에 대하여 연구하였다. 수용액과 에탄올 용액상의 Tb+3과 Eu+3 두 이온의 특성 형광선의 세기에 비하여 주어진 용액을 TLC 에 점적하면 이온의 형광선의 세기가 매우 증가하였으며 특히 TLC에 점적된 이온에 ο-phenanthroline을 추가로 점적하면 형광선의 세기가 더욱 증가하는 형광 증폭 현상을 이용하여 Tb+3과 Eu+3 이온의 검출한계를 106배 이상 개선하였으며 이러한 형광 증폭 현상의 이론적인 배경으로 란탄이온 착물내의 리간드와 중심금속이온 사이의 energy-transfer mechanism을 설명하였다.

A new analytical luminescence method for the Tb+3 and Eu+3 ions was studied using the fluorescence enhancement of the ions on the TLC plate. Compared to the specific emission intensities of the ions in aqueous or ethanol solution, if spotted on the TLC plate, the line intensities were extremely enhanced. There was additional enhancement effect of the lines from the ions on the TLC plate, if treated with ο-phenanthroline. Based on the luminescence enhancement, the detection limit of the ions was lowered more than 6 order of magnitude compared to the luminescence method using solution samples. The energy-transfer mechanism was also explained for the theoretical back ground of the luminescence enhancement.

Page
 40 - 46
Full Text
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