Results 281 to 290 of about 1,064,285 (340)
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Deuterium analysis by infrared spectrophotometry
Talanta, 1960Abstract An improved method for the infrared spectrophotometric determination of deuterium is described.
R.N. Jones, Marjory A. MacKenzie
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Nonlinear multicomponent analysis by infrared spectrophotometry
Analytical Chemistry, 1983Les techniques des moindres carres, matricielles, pour les analyses de systemes n'obeissant pas a la loi de Beer Lambert, sont developpees et testees sur des alcanes legers.
Mark A. Maris +2 more
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, 1979
Characterization of components in the acid and base fractions of shale oil has been achieved by means of selective extraction followed by gas chromatographic separation of individual phenolic and heterocyclic nitrogen base compounds on a stainless steel ...
P. Udén +4 more
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Characterization of components in the acid and base fractions of shale oil has been achieved by means of selective extraction followed by gas chromatographic separation of individual phenolic and heterocyclic nitrogen base compounds on a stainless steel ...
P. Udén +4 more
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CRC Handbook of Basic Tables for Chemical Analysis, 2020
T. Bruno, P. Svoronos
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T. Bruno, P. Svoronos
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Near-Infrared Spectrophotometry of the Brain in Cardiovascular Surgery
The Thoracic and Cardiovascular Surgeon, 1998Neuropsychological and neurological deficits are still major causes of mortality and morbidity after cardiac operations and are thought to be caused by embolism and cerebral hypoxia. Near-infrared spectrophotometry (NIRS) is a promising method for non-invasive monitoring of cerebral oxygenation and hemodynamics. Different devices provide information on
Richard A. Jonas +2 more
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, 1976
In parts I and II (1,2) of this present series of papers the use of infrared spectrophotometry using diamond windows (3,4,5) in the analysis and classification of 1 to 4 μg samples of individual automotive paint layers was outlined.In order to ...
P. Rodgers +5 more
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In parts I and II (1,2) of this present series of papers the use of infrared spectrophotometry using diamond windows (3,4,5) in the analysis and classification of 1 to 4 μg samples of individual automotive paint layers was outlined.In order to ...
P. Rodgers +5 more
semanticscholar +1 more source
Spectrophotometry of Stars in the Near Infrared
1987The aim of this exercise is to become acquainted with some aspects of spectro-photometrical observations in the near infrared with modern detectors and mainly with the calibration problem. Any spectrophotometrical work i.e. any attempt to derive the spectral energy distribution of a star includes the determination of the response curve of the system, S(
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An Intensity-Compensating System for Infrared Spectrophotometry
Journal of the Optical Society of America, 1953A novel compensating device for use in infrared spectrophotometry has been designed, constructed, and its properties investigated. The device consists of two sector disks rotated synchronously, with phase control on one disk permitting an absolute variation of the transmission factor of the compensator.
H. M. Richardson +2 more
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Measurement of Cell Thickness in Infrared Spectrophotometry
Applied Optics, 1967It is shown that the usual expression for measuring the cell thickness d(a) of an empty cell, namely, d(a) = lambda(1)lambda(2)N/2(lambda(2) - lambda(1)), where N is the number of fringes over the wavelength range lambda(1) and lambda(2), may only be applied under particular conditions of cell and wall thickness and spectrophotometer characteristics ...
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Science, 1951