Standard ultraclean polypropylene SPE columns are used for samples from 0.2 to 10 ml when standard speed, recovery, and final concentration are needed.

The narc™-2 disposable extraction columns are typically used for separation of hydrophobic/basic analytes (cocaine, benzoylecognine) from urine. The SPE-10 methods development kit is ideal for methods development or optimization. The kit contains five columns each of 11 different BAKERBOND® narrow-pore sorbents: amino (NH₂), aromatic sulfonic acid (SO₃H), carboxylic acid (COOH), cyano (CN), diol (COHCOH), diamino (NH₂/NH), octadecyl (C₁₈), octyl (C₈), phenyl (C₆H₅-C₂H₄-), silica (Si), and quaternary amine (N+).

These columns are ideal for separating drugs and small molecules. Columns are vacuum packed to preserve sorbent performance. The optimized, round-rimmed tube and frits are made from ultrapure polymers. The tubes fit most processors and racks.