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| you’re in > Products > Manufacturers > Agilent Technologies > GC columns > GC/MS columns |
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Agilent Technologies J&W GC/MS Columns |
Agilent J&W GC/MS columns are highly efficient, inert
and bleed less than the competition, offering you uncompromised sensitivity. When used in conjunction with an optimized GC/MS system, these columns achieve the lowest possible detection limits for your most difficult analytes with excellent mass spectral clarity. Increased analytical sensitivity with resulting lower detection limits is a function of the ratio of signal-to-noise. Improvements to signal-to-noise are achieved by:
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Increasing signal -
Highly efficient, inertGC/MS columns produce narrow and tall peaks for the most active analytes.
Decreasing noise -
Low column bleed reduces baseline rise and the amount of noise contributed by the column, thereby reducing baseline interference. |
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| DB-1ms: |
Very low bleed characteristics, general purpose |
| HP-1ms: |
Very low bleed characteristics, general purpose |
| DB-5ms: |
Very low bleed characteristics, general purpose |
| HP-5ms: |
Very low bleed characteristics, general purpose |
| DB-XLB: |
Low polarity, unique selectivity |
| DB-35ms: |
Mid Polarity, Ideal for confirmational analyses |
| DB-17ms: |
Mid Polarity, best column for CLP pesticides |
| DB-225ms: |
Mid/high polarity |
| Ultra Inert: |
Even lower bleeding characteristics!! |
| DuraGuard: |
Different phases with "build in" guard column |
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| DuraGuard |
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- Columns with “built in“ guard columns, no press-fit connectors
- Minimize front-end contamination and increase column lifetime
- Aid in focusing sample onto the front of the column for better peak shape
- Minimize MSD contamination originating from the column (when used in transfer line)
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DuraGuard columns of different phases and dimensions are available through Agilent
Technologies' custom column shop. Any DB polysiloxane or low bleed phase can be made as
a DuraGuard column with 0.18 mm ID or larger fused silica tubing. Ask for a custom column
quote (part number 100-2000 and specify the phase, ID, length, and film thickness of
analytical column, and desired length of DuraGuard).
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| Phase |
ID (mm) |
Length (m) |
Film (μm) |
DRGD Length (m) |
Part No. |
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| DB-1 |
0.25 |
30 |
0.25 |
10 |
122-1032G |
| DB-XLB |
0.25 |
30 |
0.25 |
10 |
122-1232G |
| DB-5.625 |
0.25 |
30 |
0.25 |
5 |
122-5631G5 |
| DB-5ms |
0.25 |
30 |
0.25 |
10 |
122-5532G |
| DB-5ms |
0.25 |
30 |
0.50 |
10 |
122-5536G |
| DB-5ms |
0.25 |
60 |
0.25 |
10 |
122-5562G |
| DB-5ms |
0.32 |
30 |
1.00 |
10 |
122-5533G |
| DB-5ms |
0.32 |
30 |
1.00 |
10 |
123-5533G |
| DB-5ms |
0.53 |
30 |
0.50 |
10 |
125-5537G |
| DB-1701 |
0.53 |
30 |
1.00 |
10 |
125-0732G |
| DB-624 |
0.53 |
30 |
3.00 |
5 |
125-1334G5 |
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