SPE Cartridges

Solid-Phase Extraction (SPE) is a sample preparation technique that is used to clean up and/or concentrate samples before analysis. Compared to liquid-liquid extraction, SPE is much faster, uses less solvent, and saves money. SPE provides clean extracts and high recoveries. SMT TotalSep™ SPE cartridges have been developed to meet some of the most dif culty challenges in sample puri cation methods: clean extracts and high recoveries.

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.

 

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SMT TotalSep™ SPE Phases are currently available in the following bulk packing materials:
• Reversed-Phase
• Ion-Exchange
• Normal Phase
TotalSep™ SPE packings are offered on the following silica sizes; all cartridges are designed to individual customer’s needs:
• Small particle (20 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.

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