Results 201 to 210 of about 819,497 (252)

Infrared Spectrophotometry as a Means for Identification of Bacteria

Science, 1952
H J R, STEVENSON, O E A, BOLDUAN
exaly   +3 more sources

Quantitative Determination of Tenoxicam by Infrared Spectrophotometry

Analytical Letters, 1997
Abstract The purpose of this study was the quantitative determination of solid dosage forms containing tenoxicam (TNX) by IR spectrophotometry, using the KBr disc technique. Dehydrocholic acid (DHCA) was used as the internal standard. The specific absorption bands at 1420 cm−1 and 1705 cm−1 were chosen for TNX and DHCA, respectively.
Dincol, F, Atay, O
openaire   +2 more sources

Studies of Cryptococcus Polysaccharides by Infrared Spectrophotometry

Journal of Infectious Diseases, 1959
Infrared spectrums of isolated capsular polysaccharides have been used to segregate types within certain groups of encapsulated bacteria. The results of spectral typing of purified pneumococcal polysaccharides (1) and of crude klebsiella polysaccharides (2) have paralleled the results of serological typing.
S, LEVINE, E E, EVANS, P W, KABLER
openaire   +2 more sources

Determination of HOD by infrared spectrophotometry

Talanta, 1978
The concentration of HOD in biological fluids is measured by using vacuum distillation, followed by infrared spectrophotometry.
openaire   +2 more sources

Near-Infrared Spectrophotometry

Applied Spectroscopy Reviews, 1968
Abstract Near-infrared spectroscopy is usually considered to cover that part of the electromagnetic spectrum which falls between 0.71μ. and approximately 3 p. From the theoretical viewpoint, one might place the upper wavelength limit near 2.51μ. and define near-infrared spectroscopy as the study of low-energy electronic transitions and overtones and ...
openaire   +1 more source

Some problems in infrared spectrophotometry

Journal of Molecular Structure, 1973
Abstract : It is well known that infrared intensity measurements are not very accurate. Nevertheless modern infrared spectrophotometers do exhibit good reproducibility, at least over small time intervals. Failure to obtain closer inter-laboratory agreement must result from systematic instrumental errors and faulty experimental technique.
R.N. Jones, D. Escolar, J.P. Hawranek, P. Neelakantan, R.P. Young   +4 more
openaire   +1 more source

Near-Infrared Spectrophotometry

1993
Light absorption in tissue is very limited in the near-infrared range; thus brain tissue may be transilluminated effectively using standard technology. Measurements of brain oxygenation and circulation can be obtained at the cotside. Although the techniques are still under development and the application in newborn infants is still limited, the use of ...
openaire   +1 more source

Measurement of Cell Thickness in Infrared Spectrophotometry

Applied Optics, 1967
It 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 ...
openaire   +2 more sources

Infrared and ultraviolet spectrophotometry in residue evaluations

1964
In order to begin this discussion of infrared and ultraviolet spectrophotometry in residue evaluations, it is important to discuss briefly the broad field of spectrophotometry and to define the various regions of the electromagnetic spectrum of interest.
openaire   +2 more sources

Near Infrared Absorption Spectrophotometry

Applied Spectroscopy, 1952
Interest in several regions of the electromagnetic spectrum has increased greatly since the War under the stimulation of new apparatus for the generation and detection of radiation. Just as the perfection of the magnetron and the klystron has given the spectroscopist relatively powerful sources of ...
James L. Lauer, E. J. Rosenbaum
openaire   +1 more source