top of page

C8/SCX SPE Cartridge

Extracting basic drugs in biological fluids


Finetech® C8/SCX is composed of silica gel bonded with octyl and phenylsulfonic acid groups at a specific ratio. It’s a mixed-mode sorbent with two retention mechanisms: octyl groups provide moderately hydrophobic interactions, phenylsulfonic acid groups provide strong cation exchange


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

◆ Features:

  • Moderate retention, avoiding extremely strong adsorption of some compounds

  • Ideal for complicated samples such as blood and urine

◆ Specifications:

Surface area: 480 m²/g

Particle size: 40-75 μm

Pore size: 70 Å

◆ Applications:​

  • Determination of drugs and their metabolites in biological fluids

  • Determination of drugs of abuse such as cocaine, acetylcodeine, morphine and ketamine

◆ Ordering Information

bottom of page