Generally, SPE products are used in one of two ways. One method involves passing the sample through an SPE packing bed that retains interfering sample components while the analytes pass through unretained. The second, more common, method passes the sample through an SPE packing bed that retains the analytes and, possibly, interfering sample components or other impurities. The interfering components are then washed off of the packing bed before the analytes are eluted. The elution is done with a small solvent volume in order to concentrate the sample, thereby increasing detection limits and making the analysis easier.
• Normal Phase
• Small particle (5-10 μm)
• Intermediate Partcle ( 25-40 μm)
• Standard Particle (35-60 μm)
• Large Particle (125-210 μm)
All SMT packing materials can be packed in other SPE columns, ash columns and well plates and are offered in bulk and various quantities.
Empty Reservoirs, Frits and Caps: Empty SPE columns, ash columns and well plates and are offered in various sizes and quantities.