ResourceSpectroscopy
Spin Finish on Fibers Oil Pick Up without Sample Weighing
1 May 2014Fiber manufacturing often uses a thin layer of finish to assist the fiber’s performance and its ability to run in downstream spinning processes. This application note presents a TD-NMR method for the application of spin finish on fibers oil pick up without sample weighing, in which both FID and Hahn echo are recorded.
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NMR and EPR SpectroscopyNuclear magnetic resonance (NMR) spectroscopy is used to resolve the local chemical environment of atomic nuclei with spin, revealing information on molecular structure, dynamic processes and chemical reactions of organic molecules, from proteins to synthetics. Electron paramagnetic resonance (EPR) also known as electron spin resonance (ESR) spectroscopy is used to detect and quantify paramagnetic species in a sample, including free radicals as transition metal ions. By immersing the sample in a strong magnetic field, both NMR and EPR spectrometers probe the sample with either radio waves or microwaves respectively. A range of benchtop, solid-state and time domain NMR spectrometers & EPR spectrometers are available, as well as NMR tubes, NMR solvents, software, coils, and magnets. Find the best NMR & EPR equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Fibers