007-CW
(Polyethylene glycol-PEG)
BTR-CW
(Polyethylene glycol - Oxygen resistant )

Bonded and Crosslinked
Moderately polar
Comparable to Carbowax 20M.
Excellent oxygen resistance (BTR-CW)
Available in films up to 5.0 microns!
Similar phases: DB-Wax, Stabilwax, AT-Wax, HP-20M, HP-Innowax, BP-20, CPWax-52CB
007-CW and BTR-CW are the Quadrex designations for an ethylene glycol/siloxane copolymer. This polymer can be used to separate compounds at temperatures not normally associated with polyethylene glycol (CarbowaxTM) phases. Both the lower and upper temperature limits of traditional Carbowax type columns are extended with this phase. In addition, Quadrex offers a modified version of the 007-CW phase, designated BTR-CW, which incorporates an anti-oxidant moiety to better withstand oxygen degradation. The BTR-CW phase offers increased thermal stability and longer column lifetimes. The hydrogen bonding interactions of the 007-CW and BTR-CW phases makes them well suited for the analysis of polar compounds, perfumes, and essential oils. These phases are not recommended for the analysis of mixtures containing silylating reagents. Download our BONDED CARBOWAXTM flier in .PDF file format (you will require Adobe Acrobat Reader (free) to view this file). Our flier features 007-CW and BTR-CW applications and technical information. (Carbowax is a trademark of the Union Carbide Corporation)

007-CW/BTR-CW AVAILABLE COLUMN CONFIGURATIONS
I.D. (mm)	Lengths (Meters)	Film thicknesses (um)
0.10	15, 25	0.1, 0.25
0.18	15, 25, 30, 50	0.1, 0.25, 0.5
0.25	15, 25, 30, 50, 60, 75, 100	0.1, 0.25, 0.5, (1.0 on 60M. or less)
0.32	10, 15, 25, 30, 50, 60, 75, 100	0.1, 0.25, 0.5, 1.0, (2.0, 3.0 on 50M. or less)
0.53	10, 15, 25, 30, 50, 60, 75, 100	0.1, 0.25, 0.5, 1.0, 2.0, 3.0, (4.0, 5.0 on 30M. or less)

We have now added our complete fused silica and Ultra-ALLOY stainless steel column price lists. The lists are sorted by I.D. then column length. You can CLICK HERE to go directly to column pricing, or can link to the pricing pages on the individual column information pages. Click HERE to go directly to the 007-CW price page. Click HERE to go directly to the BTR-CW price page. The columns listed are those that are commonly requested by our customers. If you do not see the column configuration you require, CONTACT US, we will be happy to quote.

OPERATING TEMPERATURE RANGE
film thickness	temperature range
up to 1.0 micron	20° C to 280° C
2.0 to 5.0 micron	up to 240° C

Bonded Phase Retention Index
Phase	benzene	1-nitropropane	2-pentanone	pyridine	butanol
007-CW	923.30	1214.35	923.30	1205.08	1137.80
BTR-CW	967.80	1218.58	1005.78	1205.75	1150.69

Every Quadrex capillary column undergoes stringent testing utilizing either a modified Grob test mix or application-specific test mix prior to shipping. An actual Capillary Column Test Data Sheet, which includes the test chromatogram, operating conditions, and general column information accompanies every column we ship.  For more information on the Grob Test, click here.

Below are the results of a 007-BTR-CW column tested with the Grob Test mix which shows the excellent level of deactivation and efficiency achieved with this mid-polarity phase.

Column: 30M. Bonded Carbowax - Oxygen Resistent 0.25mm I.D. x 0.5m m film Cat. No.: BTR-CW-30-0.5F Temperature: 40° (6° / min.) - 250° C Flow: 25cm/ sec, He Injector: 225° C Detector: 280° C, FID	ELUTION ORDER 1. decane 7. dicylcohexylamine 2. undecane 8. methyl undecanoate 3. nonanal 9. methyl dodecanoate 4. octanol 10. 2,6-dimethylaniline 5. 2,3-butanediol 11. 2-ethylhexanoic acid 6. methyl decanoate 12. 2,4-dimethylphenol