Bio-Rad Bio-Rex® Reactor Grade Resins - Manual (Page 2)

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Introduction
Mixed bed resins are used for deionizing water or
other non-ionic substances such as urea, acrylamide, for-
mamide, or glyoxal. Deionization is the complete removal
of all ionic species from a solution.
Technical Description
AG 501-X8 mixed bed resin for deionization consists
of equivalent amounts of AG 50W-X8 strong cation
exchange resin H
+ form and AG 1-X8 strong anion
exchange resin OH- form. Bio-Rex MSZ 501(D) resin is
similar to AG 501-X8 resin, but the uniform bead size
minimizes pressure drops, increases resin capacity, and
allows shorter regeneration times. Molecular Biology
Grade AG 501-X8 resin is certified to be endo- and
exonuclease-free and to contain no ligase inhibitors.
Biotechnology Grade AG 501-X8 resin is certified to con-
tain less than 100 micro-organisms per gram. AG 501-
X8(D) resin and Bio-Rex MSZ 501(D) resin have a blue
dye irreversibly bound to the anion exchange resin, which
turns from blue to gold when the exchange capacity is
exhausted. The resin specifications are given in Table 1.
LIT205B 6/17/98 12:15 PM Page 1