Online coupling of gas chromatography to nuclear magnetic resonance spectroscopy: method for the analysis of volatile stereoisomers.
The identification of volatile cis/trans-stereoisomers was accomplished by employing a hyphenated GC-NMR system. The chromatographic and spectroscopic conditions were optimized with respect to the (1)H NMR detection. A special processing technique was developed to handle the recorded NMR spectra in the gas phase with very low sample amounts. The processed stopped-flow (1)H NMR spectra of the investigated chromatographic peaks unequivocally revealed the structure of the corresponding compounds.
Institute of Organic Chemistry, Chemisches Zentralinstitut, University of Tuebingen, Auf der Morgenstelle 18, D-72076 Tuebingen, Germany.
Maximilian
M
Kühnle
Diana
D
Kreidler
Karsten
K
Holtin
Harri
H
Czesla
Paul
P
Schuler
Walter
W
Schaal
Volker
V
Schurig
Klaus
K
Albert