Paramagnetic resonance spectrometr

Mass and Electron Paramagnetic Resonance Spectrometric Analyses of Selected Organic Components of Cretaceous Shales of Marine Origin... 

Baker E. W., Huang W. Y., Palmer S. E. and Rankin J. G. (1977) Mass and electron paramagnetic resonance spectrometric analyses of selected organic components of Cretaceous shales of marine origin. Symposium on Analytical Chemistry of Tar Sands and Oil Shale. Amer. Chem. Soc., New Orleans, March 20-25, 1977, 739-752. Baskin D. K. (1997) Atomic H/C ratio of kerogen as an estimate of thermal maturity and organic matter conversion. Am. Assoc. Petrol. Geol. Bull. 81, 1437-1450. 

X-ray diffractometry, spectrometric techniques ( Si high-resolution NMR, adsorbed 125Xe NMR, and electron paramagnetic resonance), and transmission electron microscopy (TEM) have been used to study solid-state reactions occurring between NaY zeolite and V205 at 700 K. When the ratio R (V atom number/[Al + Si] atom number) is 0.2, the zeolite lattice collapses. However, when R 0.05, the lattice remains. The interaction is interpreted in terms of sodium vanadate (containing Vv and atoms) formation. 

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