007-225 is the Quadrex 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.
Quadrex
007-225 columns have been cited in a number of estrogen
assay methods. The most commonly used 007-225
column configuration is 15M. x 0.25mm x 0.25µm film, our
# 007-225-15-0.25F.
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
007-225, (50%
Cyanopropylphenyl) Methylpolysiloxane columns are available
in all standard column I.D.'s and lengths.
The film thickness ranges are noted in the
chart below.