EPA Method 3630C

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EPA Method 3630C:
SILICA GEL CLEANUP

Summary:
This method provides the option of using either standard column chromatography techniques or solid-phase extraction cartridges. Generally, the standard column chromatography techniques use larger amounts of adsorbent and, therefore, have a greater cleanup capacity.

Scope:
Silica gel (silicic acid) is a regenerative adsorbent of silica with weakly acidic properties. It is produced from sodium silicate and sulfuric acid. Silica gel can be used in column chromatography for the separation of analytes from interfering compounds of a different chemical polarity. It may be used activated, after heating to 150 - 160EC, or deactivated with up to 10% water.

Report Number:
SW-846 Ch 4.2.2