Resprep PSA SPE Cartridge, 6mL/500mg, 30/pk

Restek

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RK28970

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High-quality, silica-based adsorbents.
Used for common sample matrices such as food, soil, water, and petroleum.
PSA - primary secondary amine.
In addition to its primary use mechanisms (reversed-phase or normal phase), PSA may also be used as a weak anion exchange (WAX).
PSA has a higher ion-exchange capacity than NH2.
Stable over the pH range (2 – 9).