We have two JEOL ECZ S 400 instruments. Some samples e.g. porphyrins can take
10 hours or so to get a reasonable S/N 13C spectrum. HSQC is meant to be about
15 times as sensitive 1D 13C. I haven't found a set of parameters that gives
high enough resolution on the 13C axis via HSQC, along with a f aster time, that
persuades people to abandon their beloved 1D 13C.
Does anyone think they have the perfect set of parameters for such horrible
compounds?
Rob Lewis
Dr Rob Lewis | Team leader, Analytical Services | Faculty of Science and Engineering
University of Hull
Hull, HU6 7RX, UK
www.hull.ac.uk<
http://www.hull.ac.uk>
R.A.Lewis_at_hull.ac.uk | 01482 466649
Received on Wed Mar 09 2022 - 07:28:40 MST