Anyone familiar with EPH methods such as those developed by the Massachusetts or New Jersey Department of Environmental Protection is familiar with the long and gruelling process of fractionation. For those unfamiliar, with EPH or Extractable Petroleum Hydrocarbons it is an extraction that essentially occurs in two distinct parts: the initial extraction & concentration and then the fractionation of that initial extract into the aromatic and aliphatic fractions followed by concentration again. EPH is a method that replaces the TPH (Total Petroleum Hydrocarbons) or 8015 methods and allows for the calculation of specified carbon ranges giving you a more accurate assessment of potential health risks.
“I’m so tired of doing dishes!”
Between the dishes I wash at home and those I wash in the lab, that phrase leaves my lips no fewer than 3 times a day. If I were to add up the number of hours I’ve spent washing dishes over the past year, I’d….well…it’s too upsetting, so I try not to do that calculation. Let’s just say I’d have had time to become a seasoned marathon runner and to backpack across both Europe and parts of Australia.
In the world of solid phase extraction (SPE), the list of media that is available seems to be ever-growing. From polymeric stationary phases, to silica-based media, and even molecularly imprinted polymers specifically designed for target analytes. The possibilities seem endless. Luckily for us, most EPA methods specify which media type is required for analysis, but what about methods that don’t specify?
For the methods which don’t specify the media you must use, how do you select your media type?
If you’re like most laboratories that are responsible for processing samples for organic compounds, you are on a constant quest to improve efficiency and operating costs while maintaining regulatory compliance and technician safety.
The Atlantic® ReadyDisks deliver the quality and ease-of-use you need to improve your laboratory efficiency without sacrificing data performance.
These single-use SPE disk holders are designed for use in extracting semi-volatile organic compounds (SVOCs) from aqueous samples. Constructed from high quality components and pre-assembled under carefully controlled conditions, ReadyDisks deliver the accuracy and reproducibility you need, in a format that’s ready for use straight out of the box.
Ready to perform your solid phase extractions with ease and convenience?
Sign up now and receive your complimentary C18 or DVB starter pack.
Solid phase extraction is a powerful technique – it can be used to clean up the most challenging samples, and extract and preconcentrate hundreds of semivolatile organic compounds. When performing the extraction, the goal is to get the entire sample to run through the extraction disk. But in order to do that, the disk must have the chemical and physical capacity to handle your sample matrix. If your disk becomes overwhelmed or clogs, you risk losing your sample and the chance to complete your extraction.
How do you prevent the disk from clogging? Prefilters!