Topic
Fourier transform spectroscopy
About: Fourier transform spectroscopy is a research topic. Over the lifetime, 5418 publications have been published within this topic receiving 134133 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: A method for obtaining the three-dimensional distribution of chemical shifts in a spatially inhomogeneous sample using Fourier transform NMR is presented and an estimated signal/noise ratio of 20 in 10 min is obtained.
Abstract: A method for obtaining the three-dimensional distribution of chemical shifts in a spatially inhomogeneous sample using Fourier transform NMR is presented. The method uses a sequence of pulsed field gradients to measure the Fourier transform of the desired distribution on a rectangular grid in (k,t) space. Simple Fourier inversion then recovers the original distribution. An estimated signal/noise ratio of 20 in 10 min is obtained for an "image" of the distribution of a 10 mM phosphorylated metabolite in the human head at a field of 20 kG with 2-cm resolution.
1,044 citations
01 Jan 1992
TL;DR: In this article, the authors describe the common liquid sampling accessories and applications of solution state FTIR spectroscopy to lignins, and the reader is referred to Chapter 4.1.
Abstract: Typically, lignins are characterized by IR spectroscopy in the solid state. The examination of lignins in solution has long been a domain of UV and NMR spectroscopy. However, with the advent of the FTIR technique, the IR spectra of liquid samples now can be readily obtained. The need to measure IR spectra in solution exists when there is not enough time to isolate lignin from solution as, for example, is the case when spent pulping liquors have to be analyzed rapidly during a pulping process for process control. This section describes briefly the common liquid sampling accessories and applications of solution state FTIR spectroscopy to lignins. For more details on FTIR spectroscopy, the reader is referred to Chapter 4.1.
1,024 citations
TL;DR: The Fourier transform ion cyclotron resonance (FT-ICR) 1.5 mass spectrometer as discussed by the authors was developed for mass spectroscopy and it can be used to obtain the whole spectrum in a very short period of time.
957 citations