Attenuated Total Reflectance Infrared Analysis of Aqueous Solutions.

Structural environments of carboxyl groups in natural organic molecules from terrestrial systems. Part 1: Infrared spectroscopy

“…The cyclopentane 1,2-dicarboxylate value is for the trans conformation, while all carboxylates in the cyclopentane tetracarboxylate are in the cis conformation. Values were compiled from the following: (1) this study, (2) Cabaniss and McVey (1995), (3) Dobson and McQuillan (1999), (4) Katlafsky and Keller (1963), (5) Aromatic carboxylates with electron-withdrawing substituents (e.g., substituted benzoates; Fig. 3) also exhibit higher m as values, with trends similar to those noted above for aliphatic compounds.…”

Measurement of the Specific Surface Area of Clays by Internal Reflectance Spectroscopy

“…Internal reflectance spectroscopy (Harrick, 1967) may provide a solution to this problem inasmuch as one of its advantages is that it does not require a knowledge of the thickness of the sample. Other advantages of an internal reflectance spectroscopic method are the ease of sample preparation, the absence of interference fringes (Harrick, 1967), the ease of analyzing samples having large absorption coefficients and, hence, requiring short path lengths (Katlafsky and Keller, 1963), and the lack of scattering in the spectra of mineral powders (Harrick and Riederman, 1965). The present paper reports the results of our investigation of the measurement of S by infrared internal reflectance spectroscopy.…”

Quantitative Analysis of Aqueous NO2(-) and NO3(-) Solutions by Infrared Internal Reflection Spectroscopy

“…2 solutions, the intensity of the 1237-cm -I NO 2 -band decreasing progressively with decreasing V.02 concentration. A reasonably linear relation between the absorbance of the 1237-cm -I band and 110 2 concentration was obtained (Fig.…”