Determination of 11α-hydroxy-9,15-dioxo-2,3,4,5,20-pentanor-19-carboxyprostanoic acid and 9α,11α-dihydroxy-15-oxo-2,3,4,5,20-pentanor-19-carboxyprostanoic acid by gas chromatography/negative ion chemical ionization triple-stage quadrupole mass spectrometry

1990 ◽  
Vol 189 (1) ◽  
pp. 54-58 ◽  
Author(s):  
Horst Schweer ◽  
Claus O. Meese ◽  
Hannsjörg W. Seyberth
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