Quantitation of Radio-Labelled Vitamin K1 and Vitamin K1 Epoxide in Plasma by High Pressure Liquid Chromatography
1978 ◽
Vol 39
(02)
◽
pp. 466-473
◽
Keyword(s):
SummaryA convenient, accurate and reproducible high pressure liquid chromatographic method for the quantitation of radio-labelled vitamin K1 and vitamin K1 epoxide in plasma is described. The method involves the determination of total ether extractable radioactivity, and a chromatographic separation to determine the relative quantities of radio-labelled vitamin K1 and vitamin K1 epoxide. The method is useful over a wide range of ratios of the two compounds, and has a coefficient of variation of approximately 5%.
1975 ◽
Vol 58
(4)
◽
pp. 754-756
◽
1977 ◽
Vol 60
(1)
◽
pp. 210-212
◽