Absolute Quantitation
Quantification of two precursors of bile acid synthesis (7α-OH chol-4-esten-3-one and 7α,12α-diOH chol-4-esten-3-one) in human and rodent plasma/serum, bile, tissues, cells, cecal content, brain, neurons, urine, and feces by UPLC-(+)MRM/MS.