A Novel SPE Disk that Combines the Advantages of SPE Cartridges and Conventional 47-mm Disks While Overcoming their Challenges

New Organic Monitoring Techniques
Oral Presentation

Prepared by I. Wan
PromoChrom Technologies, 13351 Commerce Parkway, Unit 1103, Richmond, British Columbia, V6V 2X7, Canada


Contact Information: [email protected]; 778-723-0421

ABSTRACT

Solid phase extraction is often the most challenging and time-consuming process in the analysis of large volume water samples. Majority of solid phase extractions are performed using SPE cartridges, even though SPE disks offer much higher flow rate and clogging resistance. This is due in part to the higher cost and larger volume of solvent usage. In addition, most automated SPE systems are only compatible with SPE cartridges, thereby further limiting the use of disks.

In this presentation, we bring forth a novel Mini-disk that combines the advantages and eliminates the shortcomings of cartridges and disks. The hybrid design can achieve high flow rates and tolerance to particulate matter while using similar amounts of solvent as cartridge-based extraction. The diameter of the Mini-disk measures only 30mm and is packaged to fit standard luer connections, making it suitable for cartridge-based automated SPE systems and vacuum manifolds.

This new disk format brings about significant breakthroughs in efficiency and matrix tolerance over conventional cartridge-based extractions. Important design considerations and results will be discussed.