20653
A method has been developed for the measurement of transport activities in membrane vesicles obtained from Sf9 cells for 3 beta - hydroxy - Delta ( 5 ) - bile acids by high - performance liquid chromatography - electrospray ionization - tandem mass spectrometry .
 Chemical: 3 beta - hydroxy - Delta ( 5 ) - bile acids
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 Chemical: 3 beta - hydroxy - Delta ( 5 ) - bile acids