PT - JOURNAL ARTICLE AU - López, F. Vázquez AU - SolíS, I. Pire AU - Castro, F. Armijo TI - Oil Foreign Particles in Freeze-Dried Injectable Powder DP - 1982 Nov 01 TA - PDA Journal of Pharmaceutical Science and Technology PG - 259--266 VI - 36 IP - 6 4099 - http://journal.pda.org/content/36/6/259.short 4100 - http://journal.pda.org/content/36/6/259.full SO - PDA J Pharm Sci Technol1982 Nov 01; 36 AB - The phenomenon of back-migratory oil vapors in an industrial freeze-drier and its consequences in the freeze-dried poweder for injection are discussed. A new and simple technique for the quantification of the contamination is also described, which permits choosing the most adequate work conditions and the most efficient adsorbants for the oil vapors.