Polymeric vs Silica Based Solid Phase Extraction Columns for the Analysis of Delta-9-THC and 11-nor-9-Carboxy-THC in Oral Fluid

Positive Pressure Manifold - A simple, robust way to quickly process up to 48 samples at one time. The Positive Pressure Manifold can accommodate a multitude of column sizes and provides even flow to each position. Positive Pressure Manifold Features: All 48 positions are individually regulated to provide even pressure to each column. There are four banks of 12 positions each. The user can control flow to each of the four banks. Capacity of 1 to 48 columns adaptable for size 1mL, 3mL, 6mL, 10mL or 15mL. Air Supply: N2 or compressed air regulated to 75 psi and filtered to 10μm. Dual pressure regulators allow users to set different pressures for extraction and column drying. Includes waste reservoir that drains automatically. Single switch raises and lowers the sample racks and creates an airtight seal.

The Clean Screen® XCEL Solid Phase Extraction Columns are a line of sample prep phases designed to reduce the number of steps in the extraction, and therefore the amount of time and solvent necessary to complete the sample cleanup. Further advantages include reduced sample size and improved cleanliness and recovery. The Xcel I column will extract a wide array of basic drugs including benzodiazepines and opiates. The Xcel II column is designed solely for the extraction of the THC metabolite.