Automating EPA 525 using Mini-Disks and Presto System at the Maryland Department of Health
- amandazhong8
- Aug 11
- 1 min read
Semi volatile organic compounds (SVOCs) in water, such as pesticides and PAHs, are monitored under EPA Method 525, a common SPE-based method for extracting and analyzing these pollutants. The Maryland Department of Health (MDH) evaluated a workflow using PromoChrom’s Mini-disks with the Presto SPE system for 22 target compounds.
MDH validation highlights:
- High efficiency: 8 x 1L samples extracted in 81 minutes
- Lower solvent use: final extract volume of 19mL
- Improved clogging resistance: Mini-disk has 5x the surface area of a 6 mL cartridge
The Mini-disk’s compact size and large surface area enable faster flow rates with lower solvent volumes, offering the advantages of both cartridges and disks. Paired with the Presto SPE system, it provides a robust and efficient automated solution for extracting SVOCs following EPA Method 525.
For a more comprehensive list of 100+ compounds, check out our in-house EPA 525 application note:
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