GRS-225 GC Capillary Column

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Overview

GRS-225 is the GRS 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.

GRS-225 columns have been cited in a number of estrogen assay methods. The most commonly used GRS-225 column configurations are 15M. x 0.25mm x 0.25µm film, our # GRS-225-15-0.25F, and 30M. x 0.25mm x 0.25µm film, our # GRS-225-30-0.25F.

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

GRS-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.

GRS-225 OPERATING TEMPERATURE RANGE :

Film Thickness	temperature range
up to 1.0µm	40° C to 240° C
2.0 to 3.0µm	up to 200°C

GC COLUMNS

Part number	Phase	particle size (µm)	length (mm)	ID (mm)
GRS-225-100W-1.0F	GRS-225	1	100	0.32
GRS-225-10HS-0.5F	GRS-225	0.5	10	0.18
GRS-225-10NB-0.05	GRS-225	0.05	10	0.1
GRS-225-10NB-0.10	GRS-225	0.1	10	0.1
GRS-225-10NB-0.1F	GRS-225	0.1	10	0.1
GRS-225-10V-1.0F	GRS-225	1	10	0.53
GRS-225-10V-1.2F	GRS-225	1.2	10	0.53
GRS-225-10V-1.8F	GRS-225	1.8	10	0.53
GRS-225-10V-3.0F	GRS-225	3	10	0.53
GRS-225-10W-0.1F	GRS-225	0.1	10	0.32
GRS-225-10W-0.25F	GRS-225	0.25	10	0.32
GRS-225-10W-0.3F	GRS-225	0.3	10	0.32
GRS-225-10W-0.5F	GRS-225	0.5	10	0.32
GRS-225-10W-3.0F	GRS-225	3	10	0.32
GRS-225-12NB-0.4F	GRS-225	0.4	12	0.18
GRS-225-15-0.15F	GRS-225	0.15	15	0.25
GRS-225-15-0.1F	GRS-225	0.1	15	0.25
GRS-225-15-0.20F	GRS-225	0.2	15	0.25
GRS-225-15-0.25F	GRS-225	0.25	15	0.25
GRS-225-15-0.2F	GRS-225	0.2	15	0.25
GRS-225-15-0.5F	GRS-225	0.5	15	0.25
GRS-225-15-1.0F	GRS-225	1	15	0.25
GRS-225-15HS-.25F	GRS-225	0.25	15	0.18
GRS-225-15HS-0.5F	GRS-225	0.5	15	0.18
GRS-225-15NB-.25F	GRS-225	0.25	15	0.1
GRS-225-15NB-0.1F	GRS-225	0.1	15	0.1
GRS-225-15NB-0.5F	GRS-225	0.5	15	0.1
GRS-225-15V-0.1F	GRS-225	0.1	15	0.53
GRS-225-15V-0.25F	GRS-225	0.25	15	0.53
GRS-225-15V-0.5F	GRS-225	0.5	15	0.53
GRS-225-15V-1.0F	GRS-225	1	15	0.53
GRS-225-15V-1.2F	GRS-225	1.2	15	0.53
GRS-225-15V-3.0F	GRS-225	3	15	0.53
GRS-225-15W-0.15F	GRS-225	0.15	15	0.32
GRS-225-15W-0.1F	GRS-225	0.1	15	0.32
GRS-225-15W-0.25F	GRS-225	0.25	15	0.32
GRS-225-15W-0.5F	GRS-225	0.5	15	0.32
GRS-225-15W-1.0F	GRS-225	1	15	0.32
GRS-225-20HS-0.2F	GRS-225	0.2	20	0.18
GRS-225-20NB-.25F	GRS-225	0.25	20	0.1
GRS-225-20NB-0.1F	GRS-225	0.1	20	0.1
GRS-225-25-0.1F	GRS-225	0.1	25	0.25
GRS-225-25-0.25F	GRS-225	0.25	25	0.25
GRS-225-25-0.2F	GRS-225	0.2	25	0.25
GRS-225-25-0.3F	GRS-225	0.3	25	0.25
GRS-225-25-0.5F	GRS-225	0.5	25	0.25
GRS-225-25-1.0F	GRS-225	1	25	0.25
GRS-225-25NB-.25F	GRS-225	0.25	25	0.1
GRS-225-25NB-0.4F	GRS-225	0.4	25	0.1
GRS-225-25V-0.25F	GRS-225	0.25	25	0.53
GRS-225-25V-0.5F	GRS-225	0.5	25	0.53
GRS-225-25V-1.0F	GRS-225	1	25	0.53
GRS-225-25V-1.2F	GRS-225	1.2	25	0.53
GRS-225-25V-2.0F	GRS-225	2	25	0.53
GRS-225-25V-3.0F	GRS-225	3	25	0.53
GRS-225-25V-5.0F	GRS-225	5	25	0.53
GRS-225-25W-0.1F	GRS-225	0.1	25	0.32
GRS-225-25W-0.25F	GRS-225	0.25	25	0.32
GRS-225-25W-0.2F	GRS-225	0.2	25	0.32
GRS-225-25W-0.3F	GRS-225	0.3	25	0.32
GRS-225-25W-0.5F	GRS-225	0.5	25	0.32
GRS-225-25W-1.0F	GRS-225	1	25	0.32
GRS-225-25W-2.0F	GRS-225	2	25	0.32
GRS-225-30-0.1F	GRS-225	0.1	30	0.25
GRS-225-30-0.25F	GRS-225	0.25	30	0.25
GRS-225-30-0.2F	GRS-225	0.2	30	0.25
GRS-225-30-0.5F	GRS-225	0.5	30	0.25
GRS-225-30-1.0F	GRS-225	1	30	0.25
GRS-225-30-1.2F	GRS-225	1.2	30	0.25
GRS-225-30HS-0.5F	GRS-225	0.5	30	0.18
GRS-225-30V-0.25F	GRS-225	0.25	30	0.53
GRS-225-30V-0.5F	GRS-225	0.5	30	0.53
GRS-225-30V-1.0F	GRS-225	1	30	0.53
GRS-225-30V-1.2F	GRS-225	1.2	30	0.53
GRS-225-30V-1.5F	GRS-225	1.5	30	0.53
GRS-225-30V-3.0F	GRS-225	3	30	0.53
GRS-225-30W-0.1F	GRS-225	0.1	30	0.32
GRS-225-30W-0.25F	GRS-225	0.25	30	0.32
GRS-225-30W-0.3F	GRS-225	0.3	30	0.32
GRS-225-30W-0.5F	GRS-225	0.5	30	0.32
GRS-225-30W-1.0F	GRS-225	1	30	0.32
GRS-225-30W-1.8F	GRS-225	1.8	30	0.32
GRS-225-30W-3.0F	GRS-225	3	30	0.32
GRS-225-50-0.25F	GRS-225	0.25	50	0.25
GRS-225-50-0.2F	GRS-225	0.2	50	0.25
GRS-225-50-0.5F	GRS-225	0.5	50	0.25
GRS-225-50-1.0F	GRS-225	1	50	0.25
GRS-225-50HS-0.25	GRS-225	0.25	50	0.18
GRS-225-50V-0.25F	GRS-225	0.25	50	0.53
GRS-225-50V-1.0F	GRS-225	1	50	0.53
GRS-225-50V-1.5F	GRS-225	1.5	50	0.53
GRS-225-50V-2.0F	GRS-225	2	50	0.53
GRS-225-50W-0.1F	GRS-225	0.1	50	0.32
GRS-225-50W-0.25F	GRS-225	0.25	50	0.32
GRS-225-50W-0.3F	GRS-225	0.3	50	0.32
GRS-225-50W-0.5F	GRS-225	0.5	50	0.32
GRS-225-50W-1.0F	GRS-225	1	50	0.32
GRS-225-60-0.25F	GRS-225	0.25	60	0.25
GRS-225-60-0.5F	GRS-225	0.5	60	0.25
GRS-225-60-1.0F	GRS-225	1	60	0.25
GRS-225-60W-0.25F	GRS-225	0.25	60	0.32
GRS-225-60W-0.3F	GRS-225	0.3	60	0.32
GRS-225-60W-1.0F	GRS-225	1	60	0.32
GRS-225-6V-1.5F	GRS-225	1.5	6	0.53
GRS-225-75-0.1F	GRS-225	0.1	75	0.25
GRS-225-75W-1.0F	GRS-225	1	75	0.32

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GRS-225 GC Capillary Column