scholarly journals Medical and Biochemical Application of Infrared Absorption Spectra. IV. Studies on Gall Stones by Infrared Spectra and their New Classification

1960 ◽  
Vol 8 (9) ◽  
pp. 771-777 ◽  
Author(s):  
Goro Chihara ◽  
Emiko Kobayashi ◽  
Ayako Mizushima ◽  
Kimiko Shirakuma ◽  
Haruo Kameda
Keyword(s):  
Absorption Spectra ◽  
Infrared Spectra ◽  
Infrared Absorption ◽  
New Classification ◽  
Biochemical Application ◽  
Gall Stones ◽  
Infrared Absorption Spectra

scholarly journals Infrared Studies of the Rubber-Filler System. I. Infrared Absorption Spectra of Inorganic Fillers

1965 ◽  
Vol 38 (1) ◽  
pp. 219-226 ◽  
Author(s):  
E. Suito ◽  
M. Arakawa
Keyword(s):  
Absorption Spectra ◽  
Infrared Spectra ◽  
Infrared Absorption ◽  
Reinforcing Fillers ◽  
Infrared Studies ◽  
Infrared Absorption Spectra ◽  
Inorganic Fillers ◽  
Rubber Filler

Abstract Infrared spectra of 33 kinds of commercial reinforcing fillers were measured by use of the KBr pellet method in connection with studies of the filler effect in rubber-filler systems. Characteristic absorptions of individual fillers are discussed in relation to their method of preparation.

3,5-Dialkyl Phenols and Their Allyl Substitution Products: Infrared Absorption Spectra and Interpretation of Characteristic Frequency Shifts

1970 ◽  
Vol 53 (2) ◽  
pp. 275-287
Author(s):  
J -Y T Chen ◽  
Nancy C Oates ◽  
David Firestone
Keyword(s):  
Absorption Spectra ◽  
Infrared Spectra ◽  
Infrared Absorption ◽  
Characteristic Frequency ◽  
Frequency Shifts ◽  
Mass Effects ◽  
Infrared Absorption Spectra ◽  
Absorption Frequencies ◽  
Allyl Substitution

Abstract The infrared spectra of five 3,5-dialkyl phenols, six 2-allyl-3,5-dialkyl phenols, and five 4-allyl-3,5-dialkyl phenols are presented. The characteristic infrared absorption frequencies are tabulated in correlation charts. The hyperconjugation and mass effects of substituent groups are discussed.

Infrared spectra of 2,4-dinitro and 2,6-dinitroaniline derivatives

1982 ◽  
Vol 47 (4) ◽  
pp. 1100-1111 ◽  
Author(s):  
Jaroslav Majer ◽  
Vladimír Kadeřábek
Keyword(s):  
Absorption Spectra ◽  
Infrared Spectra ◽  
Infrared Absorption ◽  
Point Of View ◽  
Amino Groups ◽  
Infrared Absorption Spectra ◽  
Derivatives Of

Infrared absorption spectra of N-substituted derivatives of 2,4-dinitro- and 2,6-dinitroanilines have been measured and interpreted from the point of view of bond and sterical interactions of the substituted amino groups with the both nitro groups.

Infrared absorption spectra of mineral matter in saxicolous lichens and associated mosses

1968 ◽  
Vol 5 (2) ◽  
pp. 223-230 ◽  
Author(s):  
J. F. Dormaar
Keyword(s):  
Hydrogen Peroxide ◽  
Calcium Oxalate ◽  
Absorption Spectra ◽  
Humic Acids ◽  
Infrared Spectra ◽  
Infrared Absorption ◽  
Mineral Matter ◽  
Infrared Absorption Spectra ◽  
Saxicolous Lichens ◽  
Fresh Rock

Saxicolous lichens and associated mosses, and their weathered and fresh rock zones, were collected from a number of locations. All material was treated with hydrogen peroxide and infrared spectra of the remanining mineral matter were obtained.Spectra of the mineral matter obtained from the lichens and mosses differ generally from those of the substrata. There is evidence that quartz and dioctahedral structures could be products of weathering of rocks by lichens and mosses. It is likely that saxicolous lichens obtain at least part of their minerals from the substrata. There is no indication of the presence of magnesium or of carbonates in the peroxidized material of lichens obtained from calcareous or dolomitic substrata. Peroxidation of the organic tissues leads, in the presence of calcium, to the formation of calcium oxalate; the relative intensities of the bands related to calcium oxalate, in particular those at 1325 and 780 cm−1, may be used to assess the amount of calcium present. It is suggested that this change in intensity may be a useful criterion in evaluating the transformation of Chernozemic humic acids to Podzolic humic acids in soil.

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