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Linked gas chromatography-infrared-mass spectrometry
Analytical Chemistry, 1987For almost 20 years the idea of linking a gas chromatograph with both an infrared and a mass spectrometer to form an integrated analysis system (GC/IR/MS) has intrigued analytical chemists. For example, in one of the earliest GC/IR papers, which reported GC/IR spectra of 10-18 wavenumber resolution with microgram-level sensitivity, Low and Freeman ...
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Liquid chromatography–Fourier-transform infrared spectrometry
Journal of Chromatography A, 1999Over the past years the coupling of liquid chromatography (LC) and Fourier-transform infrared spectrometry (FT-IR) has been pursued primarily to achieve specific detection and/or identification of sample constituents. Two approaches can be discerned in the combination of LC and FT-IR.
Gooijer, C. +2 more
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Biological applications of infrared spectrometry
Fresenius' Zeitschrift für analytische Chemie, 1986A brief overview of infrared studies of biological systems is presented. Relevant studies of the four classes of biomolecules, the proteins, the lipids, the carbohydrates and the nucleic acids are exemplified with results from the recent literature. The great potential of infrared spectrometry for biological studies is demonstrated.
H. H. Mantsch, H. L. Casal
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Infrared Spectrometry since 1945
Applied Spectroscopy, 1951The period since World War II has resulted in a steady growth throughout the infrared field. This growth has been mainly one of utilization and extension of wartime developments and techniques rather than one of fundamentally new discoveries. Even so, the process of utilization and extension has been so broad that the field has altered radically in the
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1962
According to current practice the far-infrared region is considered to be that part of the electromagnetic spectrum between the sodium chloride prism cutoff (about 15 μ) and the wavelengths at which microwave techniques may be successfully employed. The farinfrared region tends to be pushed continually to longer wavelengths by the development of better
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According to current practice the far-infrared region is considered to be that part of the electromagnetic spectrum between the sodium chloride prism cutoff (about 15 μ) and the wavelengths at which microwave techniques may be successfully employed. The farinfrared region tends to be pushed continually to longer wavelengths by the development of better
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Near-Infrared Hadamard Transform Spectrometry
SPIE Proceedings, 1989Hadamard transform spectrometry is a multiplexing technique that shares some of the advantages Fourier transform spectrometry offers (e.g. the Fellgett's, or multiplex advantage and the Connes', or frequency precision advantage). Hadamard transform spectrometry, using a liquid crystal electro-optic shutter array (LC-OSA) as a stationary Hadamard ...
A. P. Bohlke +2 more
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Infrared spectrometry ensures finer flour
Physics World, 1993In the food processing industry, routine analysis of fat, moisture and protein is essential for monitoring product quality, process control and for compliance with strict consumer requirements. In flour milling, for example, batches of wheat with differing protein content are ground and blended to yield a finished product with a specific protein ...
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Isotope Ratio Infrared Spectrometry
2004The application of optical isotope ratio techniques based on laser spectrometry depends on the easy availability of relatively powerful, compact narrow band laser sources with good mode structure and tunability. This chapter summarizes the optical techniques to accurately measure isotope abundance ratios as alternatives to isotope ratio mass ...
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