Proton nuclear magnetic resonance (NMR) is a useful tool to identify and to quantitate species in mixtures of organic chemicals. However, carbon-13 satellites often interfere with the identification and integration of resonances from species at low concentrations (<2%) in such mixtures. Carbon-13 satellites arise from proton coupling to carbon-13 (spin 1/2, 1.1% isotope abundance). Each satellite is 0.55% of the area of the proton resonance for protons bound to carbon-12. The interferences become particularly troublesome when the principal component of the mixture has many or overlapping resonances.
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
Login to access OSA Member Subscription