a sensitive and selective assay for measuring prostaglandins in cerebrospinal fluid has been developed , based on the selected-ion-monitoring , electron-capture negative ionization gc/ms detection for the mo-pfb-tms derivatives of prostaglandins e2 , e1 , f2 alpha , f1 alpha , and 6-keto-f1 alpha .
C0033554
prostaglandins
C0012472
prostaglandins e2