SPE columns, CHROMABOND® XTR, coarse-grained kieselguhr base material with large pore size, high pore volume and constantly high batch-to-batch quality.

• Fast, reproducible and economical
• Simultaneous preparation of several samples
• No problems with phase separation and formation of emulsions
• High recovery rates, saving of time and solvents
• Organic solutions need not to be dried after separation

Suitable for liquid-liquid extraction of highly viscous aqueous solutions such as physiological fluids (blood, plasma, and serum) in clinical chemistry, dyes in textiles, environmental and food analysis without use of a separation funnel. High water loadability without breakthrough of water during elution with organic solvents. Also suited for removing small amounts of water from solvents which are not miscible with water.