(29)Si NMR in LC-NMR analysis of silicones.
It is demonstrated using a practical example that indirect detection of (29)Si NMR signals is sufficiently sensitive in LC-NMR stop-flow arrangement to analyze mixtures of siloxane polymers. New cryogenic probes with better signal-to-noise ratio will turn this version of LC-NMR into a routine method for analysis of siloxane polymers.
Blechta
Vratislav
V
Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, Rozvojová 135, Prague 6, Suchdol 16502, Czech Republic.
Sýkora
Jan
J
Hetflejs
Jirí
J
Sabata
Stanislav
S
Schraml
Jan
J
D002853:Chromatography, Liquid / Q000379:methods*; D005240:Feasibility Studies; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D012825:Silicon; D012828:Silicones / Q000032:analysis / Q000737:chemistry*
D012828:Silicones; D012825:Silicon