고속원자충격질량분석법을 이용한 Thromboxane $B_2$ 분석
An Analytical Method of Thromboxane $B_2$ by Fast Atom Bombardment Mass Spectrometry
분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1993, v.6 no.4, pp.349-357
장석윤
김정훈
이용문
장성기
문동철
장석윤,
김정훈,
이용문,
장성기,
&
문동철.
(1993). 고속원자충격질량분석법을 이용한 Thromboxane <TEX>$B_2$</TEX> 분석. , 6(4), 349-357.
초록
고속원소충격질량분석법을 이용하여 thromboxane $B_2$의 극미량분석법을 개발하였다. static FAB mode에서 decosanoic acid를 내부표준물로 이용하여 검출한계 5ng의 분석법을 확립하였고, CF-FAB mode에서 고안한 시료도입장치를 사용하여 thromboxane $B_2$의 측정감도, 재현성 등 정량분석에 미치는 용매조성, 용매의 유속 등 분석파라미터들을 조사하였다. CF-FAB mode에서 0.75% glycerol(in EtOH, v/v)을 eluent 용매로, 유속을 $3.7{\mu}l/min.$로 하여 분석조건을 최적화하고 TIC법과 SIM 검출법을 이용하여 정량한계 각각 500pg 및 10pg인 극미량분석법을 확립하였다.
- keywords
-
Thromboxane <TEX>$B_2$</TEX>,
static FAB MS,
Continuos Flow FAB MS,
TIC,
SIM
Abstract
Analytical methods of thromboxane $B_2(TXB_2)$ using various techniques of Fast Atom Bombardment mass spectrometry (FAB MS) were studied, static FAB condition was investigated to obtain linear response curve using docosanoic acid as a internal standard. For maximum sensitivity, a continuos-flow(CF-) FAB MS by selected-ion monitoring(SIM) with devised sample introduction system, has been developed to quantiate thromboxane $B_2$ in biological sample. Instrumental parameters affecting sensitivity, reproducibility has been studied. The method has been optimized with respect to the eluent, 0.75% glycerol(in EtOH v/v) and flow rate of $3.7{\mu}l/min.$ Under the condition, detection limits were below 10pg in SIM mode and a good linear relationship between dose and response was achieved.
- keywords
-
Thromboxane <TEX>$B_2$</TEX>,
static FAB MS,
Continuos Flow FAB MS,
TIC,
SIM