Ai. Stepanov et Am. Chapygin, CHROMATO-MASS-SPECTROMETRIC IDENTIFICATION OF THE COMPOSITION OF STILL RESIDUES IN POLYCRYSTALLINE SILICON PREPARATION, Industrial laboratory, 60(9), 1994, pp. 519-521
Conditions for chromatographic separation of high-boiling impurities i
n still residues of rectification columns for high purification of tri
chlorosilane are found. The molecular compositions and retention times
for impurities are determined; this is basis for developing analytica
l procedures affording control of the technologies for high purificati
on of trichlorosilane and utilization of still residues.