Determination of impurities in germanium tetrafluoride by IR spectroscopy and gas chromatography.

Using high-resolution Fourier-transform IR spectroscopy and gas chromatography, we have identified more than 20 impurity species, in concentrations from 10 to 10 vol %, in GeF samples of different isotopic compositions. The germanium tetrafluoride samples are shown to contain C-C hydrocarbons; hydrogen, carbon, silicon, and sulfur fluorides; fluorogermanes; fluorosilanes; and carbon and nitrogen oxides. [ABSTRACT FROM AUTHOR]