title: Precise and accurate quantitative (13)C NMR with reduced experimental time.
abstract: In order to detect small variations in (13)C isotopomers concentrations, high sensitivity, accuracy and precision have to be achieved. To assess such criteria, when using (13)C NMR, (13)C bi-labelled ethanol has been proposed as a molecular probe. Advantage has been taken of the pre-established structural relationship between the peak areas of the (13)C NMR spectrum of this molecule, i.e. the ratio of signal areas is set to a fixed value. It is shown that the quality performance, required by quantitative (13)C NMR spectroscopy, is not affected by a large reduction of the repetition delay using relaxation reagents.
authors.affiliation: Nantes University, LAIEM-UMR-CNRS 6006, Faculty of Science and Technology, 2 rue de la Houssinière, BP 92208, F-44322 Nantes Cedex 3, France.
authors.forename: Elsa
authors.initials: E
authors.lastname: Caytan
authors.forename: Gérald S
authors.initials: GS
authors.lastname: Remaud
authors.forename: Eve
authors.initials: E
authors.lastname: Tenailleau
authors.forename: Serge
authors.initials: S
authors.lastname: Akoka