Investigation of Pyrrolizidine Alkaloids in Plant Material by Means of Positive Ion and Negative Ion Chemical Ionization GC-MS.
Hendriks
H
H
Laboratory of Pharmacognosy, State University Groningen, Antonius Deusinglaan 2, 9713 AW Groningen, The Netherlands.
Huizing
H J
HJ
Bruins
A P
AP