scholarly journals Low Frequency Infrared Absorption Bands of Water of Crystallization at Low Temperature

1971 ◽  
Vol 44 (2) ◽  
pp. 372-374 ◽  
Author(s):  
Kunio Fukushima
Keyword(s):  
Low Temperature ◽  
Infrared Absorption ◽  
Low Frequency ◽  
Absorption Bands ◽  
Infrared Absorption Bands

Highly Sensitive Biochemical Analysis Using Low-Temperature Infrared Spectroscopy Measurements

1997 ◽  
Vol 51 (11) ◽  
pp. 1682-1686 ◽  
Author(s):  
Toshiko Fujii ◽  
Yuji Miyahara ◽  
Yoshio Watanabe
Keyword(s):  
Aqueous Solution ◽  
Infrared Spectroscopy ◽  
Low Temperature ◽  
Infrared Absorption ◽  
Biochemical Analysis ◽  
Attenuated Total Reflection ◽  
Absorption Bands ◽  
Creatinine Concentration ◽  
Ft Ir ◽  
Infrared Absorption Bands

A sensitive infrared spectroscopic analysis of biochemical components in an aqueous solution is described. The infrared spectrum of an aqueous solution containing glucose, urea, and creatinine was measured at −4.7 °C by Fourier transform infrared spectroscopy (FT-IR) with an attenuated total reflection (ATR) crystal. The infrared absorption bands of these components increased by about 100 times at −4.7 °C as compared with those measured at 22 °C. This increase in the infrared absorption bands was found to occur because of segregation of the components toward the surface of the ATR crystal caused by solidification of the sample solution. The creatinine concentration in an aqueous solution, prepared in the physiological range of human blood, was also estimated at −4.7 and 22 °C by using the partial least-squares (PLS) method. The correlation coefficient between the predicted concentrations by PLS and the prepared concentrations was 0.95 at −4.7 °C, but was 0.07 at 22 °C. Thus, the precision of the determination of creatinine was remarkably improved by using the low-temperature measurement. Index Headings: Biochemical analysis; Low-temperature infrared spectroscopy; Solidification.

Quantitative interpretation of infrared absorption bands from hexagonal, cubic and mixed boron nitride films

1998 ◽  
Vol 7 (11-12) ◽  
pp. 1657-1662 ◽  
Author(s):  
M.A. Djouadi ◽  
S. Ilias ◽  
D. Bouchier ◽  
J. Pascallon ◽  
G. Sené ◽  
...  
Keyword(s):  
Boron Nitride ◽  
Infrared Absorption ◽  
Quantitative Interpretation ◽  
Absorption Bands ◽  
Boron Nitride Films ◽  
Infrared Absorption Bands

New infrared absorption bands of cesium vapor

1980 ◽  
Vol 72 (4) ◽  
pp. 2356-2363 ◽  
Author(s):  
E. Zouboulis ◽  
N. D. Bhaskar ◽  
A. Vasilakis ◽  
W. Happer
Keyword(s):  
Infrared Absorption ◽  
Cesium Vapor ◽  
Absorption Bands ◽  
Infrared Absorption Bands

Pyrrole Studies. I. The Infrared Spectra of 2-Monosubstituted Pyrroles

1963 ◽  
Vol 16 (1) ◽  
pp. 93 ◽  
Author(s):  
RA Jones
Keyword(s):  
Infrared Spectra ◽  
Infrared Absorption ◽  
Absorption Bands ◽  
Infrared Absorption Bands

The positions and intensities of the characteristic infrared absorption bands of the nucleus are recorded and discussed for thirty-five 2-monosubstituted pyrroles.

The Infrared Absorption Bands of Acetylene

1933 ◽  
Vol 43 (11) ◽  
pp. 883-886 ◽  
Author(s):  
G. B. B. M. Sutherland
Keyword(s):  
Infrared Absorption ◽  
Absorption Bands ◽  
Infrared Absorption Bands
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