Process for the purification of recombinant human beta interferon, beta interferon thus purified and pharmaceutical compositions which contain it
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United States of America Patent
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Sep 14, 1993
Grant Date -
N/A
app pub date -
Jan 17, 1992
filing date -
Jan 13, 1992
priority date (Note) -
Expired
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Abstract
A process is described for the purification of recombinant human beta interferon which comprises the use of three chromatographic stages carried out in series, utilizing as stationary phases: glass particles of controlled porosity, cation exchange polymer resins and polymer resins able to complex heavy metals.
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