Copure C8/SAX SPE Cartridges

Copure C8/SAX is composed of silica gel bonded with octyl and quaternary ammonium groups at a specific ratio. It’s a mixed-mode sorbent with two retention mechanisms: octyl groups provide moderately hydrophobic interactions, quaternary ammonium groups provide strong anion exchange.

C8/SAX will be a better choice if very strong absorption in C18, C8 or SAX packing results in difficult elution of some analytes.

• Moderate retention, avoiding extremely strong adsorption of some compounds
• Ideal for complicated samples such as blood and urine

Surface area: 510 m ²/g
Particle size: 40 - 75 μm
Pore size: 70 Å

• Determination of drugs and their metabolites in biological fluids, such as barbiturates
• Determination of drugs of abuse such as THC