This paper is a personal recollection of some of the events and resear
ch that surrounded the amino acid sequence determination of the hypoth
alamic releasing factor, TRF (now known as TRH), by mass spectrometry
(MS), and the development of reverse phase high performance liquid chr
omatography (RP-HPLC) MS and tandem MS (MS/MS) methods for the qualita
tive and quantitative analysis of native opioid neuropeptides in human
pituitary tissue extracts. (C) 1996 John Wiley & Sons, Inc.