These columns are ready-to-use centrifuge columns of porous C18 reverse-phase resin with excellent binding and recovery characteristics for peptide sample preparation for mass spectrometry and other methods.

• Each column contains 8 mg of C18 resin
• Removes interfering contaminants by reducing signal suppression and improves signal-to-noise ratios and sequence coverage
• Processing yields high-quality spectra and is effective for a variety of reverse-phase-compatible contaminates
• Works with a wide variety of load volumes and concentrations with no need to reduce sample volume before application
• Easy to handle and requires no special equipment to process multiple samples simultaneously
• Special resin allows excellent recovery percentages, even at low sample loads

Peptide samples can be purified and concentrated for a variety of applications using these columns. The spin column format allows simultaneous processing of multiple samples (10 to 150 µl each) in approximately 30 minutes without laborious repeat pipetting or specialized equipment. They can be used effectively for processing peptides derived from 10 ng to 30 µg of protein.