Analysis of acetanilide herbicides and their rotational isomers by picoSpin 80 NMR

Dean Antic, Ph.D., Thermo Fisher Scientific, Boulder, CO, USA Appli cat i on N ote 5 2 4 5 1 Thermo Scientific picoSpin 45 Nuclear Magnetic Resonance Aldol Condensation Reaction Key Words picoSpin 45 Nuclear Magnetic Resonance (NMR) Spectrometer, Aldol…

APPLICATION NOTE Authors: Katherine Paulsen and Daniel Frasco, Thermo Fisher Scientific, Madison, WI, USA Yufeng Zhu, Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, USA Key words picoSpin 80, NMR, polymerization, copolymer, number of repeating units,…

APPLICATION NOTE Authors: Katherine Paulsen and Daniel Frasco, Thermo Fisher Scientific, Madison, WI Key words NMR, polymer, copolymer, number average molecular weight, compositional analysis Abstract Polymer molecular weight determination and copolymer compositional analysis involve the integration of the resonance signals…

APPLICATION NOTE AN52327 Measuring the equilibrium constant of a keto-enol tautomerism using benchtop NMR Author Abstract Dean Antic, Thermo Fisher Scientific, Boulder, CO, USA The 1H NMR spectrum of a β-ketoester, ethyl acetoacetate, reveals the presence of tautomerism, a dynamic…