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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 41, Number 9
JKCSEZ 41(9)
June 20, 1997 

 
Title
Analysis of Organic Acids in Urine by Gas Chromatography/Mass Spectrometry

기체 크로마토그래피/질량분석법을 이용한 요 중에서의 유기산 분석
Author
Eun-Ah Yoo, Sun-Young Ko, Jong-Won Kim, Jeong-Uk Kim, Seung-Woon Myung

유은아,고선영,김종원,김정욱,명승운
Keywords
Abstract
기체크로마토그래피/질량분석법(GC/MS)을 이용하여 소변 내에 존재하는 유기산들을 동시에 분리정량분석할 수 있는 최적의 분석조건을 확립하기 위해 액체-액체추출법을 이용하여 분리하였고 이때 pH의 영향 및 역추출방법과 그리고 옥심와 과정 첨가의 효과를 알아보았다. 그 결과 옥심화 과정 없이 pH가 0.5일때 회수율이 좋았고 RSD값은 0.3-12.4%로 가장 적었다. 역추출과정을 통하여 방해물질이 제거되어 15-16분대의 머무름 값을 갖는 몇가지 유기산 검출이 확실시 되었다. 이를 토대로 51종의 유기산들에 대한 검량곡선을 작성하여 한국 정상어린이(n=16) 요시료 중의 유기산 함량분포를 얻었다.

GC/MS was used to find an optimum experimental condition for the screening of organic acids in urine. Urinary organic acids were isolated through the liquid-liquid extraction method (LLE) to examine the influence of pH and the effect of including the back extraction and oximation processes respectively on the extraction. When pH was adjusted to 0.5 during the extraction without oximation process, relatively higher recovery rate and the smallest relative standard deviations (0.3-12.4%) were obtained. By removing the interference, the addition of back extraction made possible surer identification of organic acids with retention time of 15-16 minutes. Under this condition, we obtained the content distribution of urinary organic acids in healthy Korean children (n=16) by establishing the calibration curves for 51 standard organic acids.

Page
471 - 482
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