The non-polar 007-1 dimethylpolysiloxane phase, which separates compounds according to boiling point, is probably the most frequently used phase type in GC. Bonding and crosslinking this general purpose GC phase increases the resistance to degradation by rinsing, large solvent injections and the deposition of non-volatiles. The 007-1 phase offers excellent efficiency and thermal stability. In addition, this non-polar phase is less susceptible to oxidation and hydrolysis than phases incorporating more polar functional groups.
- Bonded and crosslinked
- Moderately polar
- Comparable to OV-225
- Similar phases: DB-225, Rtx -225, AT-225, SP-2300, BP-225, CPSil-43CB
- USP Phase Specification: G19
Style: PHAT™
Type: Capillary
Specification: 50% Cyanopropylphenyl / 50% Methylpolysiloxane
Film Thickness: 0.25 μm
Length: 15 m
Brand: Quadrex
Inner Diameter: 0.25 mm
Mfg. No.: 007-225-15-0.25F
Similar to Ohio Valley OV-225
Carbohydrates, alditol acetates, FAMEs
007-225 is the designation for a 50% cyanopropylphenyl methylpolysiloxane. This phase possesses both permanent dipole interactions (nitrile) as well as induced dipole (phenyl) and dispersion interactions. It has unique selectivity for derivitized compounds such as fatty acids and carbohydrates. Non-volatile residues can be rinsed from the column to restore column performance.
