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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 25, Number 3
JKCSEZ 25(3)
June 20, 1981 

 
Title
X-Ray Fluorescence Analysis of Iron and Titanium in Iron Ores by Dilution Parameter Method

희석 파라미터법에 의한 철광석 중 철과 티탄의 X-선 형광분석
Author
Young-Sang Kim, Chong Wook Lee

김영상, 이종욱
Keywords
Abstract
철광석 중에서 주성분 원소들인 철과 티탄올 희석 파라미터법(dilution parameter method)을 이용한 X-선 형광분석법으로 분석하였다. 조성이 비슷한 표준시료와 분석시료 각각에 적당한 희석제(ZrO2)를 가하여 적당한 비율 (1:1, 1:2등)로 희석시켜서 원하는 원소의 형광 X-선 세기를 측정하여 다음 식으로 희석 파라미터를 구한다. Pa = {{Ias/(Ias)d - 1} / {D - 1}} 이들 파라미터를 이용하여 표준시료와 분석시료의 matrix effect 차이를 보정하여 표준검량선 없이 정량 분석하였다. Wa = Wa*·{Ias / Ias*}·{Pa* / Pa} 여기서, *는 표준시료를 표시한다. 분석결과는 습식법으로 정량한 값들과 잘 일치하고 재현성도 좋음을 보여주었다.

Iron and titanium, the major constituents in iron ores, were X-ray spectrometrically determined by using the dilution parameter method. A standard and samples possessing a similar composition were diluted with the diluent ZrO2 to their proper respective ratios. After measuring the intensity of the fluorescent X-ray, the dilution parameter was calculated from the following equation. Pa = {{Ias/(Ias)d - 1} / {D - 1}} The dilution parameters were used to correct the difference between the matrix effect of the standard and that of the sample. The content of the major constituents was calculated, without using any standard calibration curves, from the following equation; Wa = Wa*·{Ias / Ias*}·{Pa* / Pa} where asterisks indicate the standard. The results agreed with those of the wet analysis within 2% of relative error, and the precision of the experiment was also tolerably good.

Page
183 - 189
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