The identification and quantitative analysis of abscisic acid in plant extracts by gas-liquid chromatography.
New techniques are described which permit the quantitative analysis of microgram quantities of abscisic acid in plant extracts by gas chromatography. Presumptive methyl abscisate peaks on gas chromatograms are positively identified by photosensitised isomerisation to methyl 2-trans-abscisate. Losses of abscisic acid during pre-purification are corrected by using 2-trans-abscisic acid as an internal standard.
Department of Botany, University College of Wales, Aberystwyth.
J R
JR
Lenton
V M
VM
Perry
P F
PF
Saunders