- P-ISSN 1225-0163
- E-ISSN 2288-8985
고속원소충격질량분석법을 이용하여 thromboxane <TEX>$B_2$</TEX>의 극미량분석법을 개발하였다. static FAB mode에서 decosanoic acid를 내부표준물로 이용하여 검출한계 5ng의 분석법을 확립하였고, CF-FAB mode에서 고안한 시료도입장치를 사용하여 thromboxane <TEX>$B_2$</TEX>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 <TEX>$3.7{\mu}l/min.$</TEX>로 하여 분석조건을 최적화하고 TIC법과 SIM 검출법을 이용하여 정량한계 각각 500pg 및 10pg인 극미량분석법을 확립하였다.
Analytical methods of thromboxane <TEX>$B_2(TXB_2)$</TEX> 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 <TEX>$B_2$</TEX> 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 <TEX>$3.7{\mu}l/min.$</TEX> Under the condition, detection limits were below 10pg in SIM mode and a good linear relationship between dose and response was achieved.