CP-Select 624 CB 

The CP-Select 624 CB is a highly reproducible version of the popular 624 phase and has 2-3 times lower bleed (bleed specification for a 30 m, 0.53 mm, df = 3.00 µm is 9 pA) than conventional columns. The Select 624 CB, a 6% cyanopropylphenyl, 94% dimethylsiloxane phase is synthesized and fully characterized to ensure maximum column-to-column reproducibility. For an even lower bleed performance we recommend the VF-624ms.