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From: Hunter McCord
Date: 03 Feb 2004
Time: 21:48:17 -0500
Remote Name: 152.163.252.193
In all of the chromatography's "polymer beads" were used as the column matrix. Are these "beads" made or are they naturally found compounds? Some of the "beads" have a positive charge and some have a negative charge, how are the beads given this charge? (Is it natural or are the beads given the charge?)