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Stx®-1HT Columns cont.
30m, 0.32mm ID, 0.10µm Stx™-1HT (cat.# 11709); 0.20µL injection of D2887 calibration mix
(cat.# 31222), plus C46 to C58 hydrocarbons; Solvent: carbon disulfide; GC: Agilent 6890; Oven program: 30°C to
380°C at 10°C/min. (hold 15 min.); Detector: FID @ 380°C; Injector: cool on-column/track oven temperature;
Carrier gas: helium; Flow rate: 1.3cc/min. @30°C; Linear velocity: 22cm/sec. @ 30°C, constant pressure with EPC;
Make-up gas flow: 45cc/min.; Head pressure: 6.0psi
min. 10 20 30 40 50
1
2
3
4
5
6
7
8
9
10 11
12 13 14 15 16 17 18 19 20 21 22 23
1. C7
2. C8
3. C9
4. C10
5. C11
6. C12
7. C14
8. C16
9. C18
10. C20
11. C24
12. C28
13. C32
14. C36
15. C40
16. C44
17. C46
18. C48
19. C50
20. C52
21. C54
22. C56
23. C58
<10pa at
380°C!
Figure 2
The Stx™-1HT column is an excellent choice for high-temperature, low-bleed
hydrocarbon analysis up to C58.
✔ Stx®-1HT Columns (100% dimethylpolysiloxane) Stable to 380°C
ID df (µm) temp. limits 15-Meter 30-Meter
0.25mm 0.10 -60 to 380°C 11705 11708
0.32mm 0.10 -60 to 380°C 11706 11709
rules, high-temperature septa, and checking con-
nectors for leaks after every thermal cycle.
Stringent quality assurance specifications ensure
consistent column-to-column reproducibility for
Stx®-1HT columns. Each column is tested for inert-
ness, efficiency, and bleed level at its maximum
temperature (380°C). In fact, Stx®-1HT columns
are guaranteed to exhibit less than 10pA of bleed at
380°C in a leak-free system.
The Stx®-1HT column is a major advancement for
high-temperature analysis. The combination of
Siltek™ deactivation, high-temperature fused silica
tubing, and a specially synthesized stationary phase
has created a column that exhibits low bleed at
temperatures as high as 380°C.
A long-standing customer of Restek received his column only to find it was
mangled by postal machinery. Fearful of what he might find inside, he was
relieved when the column’s tubing was still intact! He supplied these pic-
tures to illustrate the endurance of Restek’s strong column cage.
Do you have a similar story to share? Tell us about it by calling 800-356-
1688 or 814-353-1300, ext. 4, or contact your local Restek representative.
Restek Columns Are Tough!
Strong Cage Helps Column Survive Rough Journey
✔ D2887 SimDist Calibration Mix
Compound Conc. Compound Conc.
(% w/w) (% w/w)
n -hexane (C6) 6 n -octadecane (C18) 5
n -heptane (C7) 6 n -eicosane (C20) 2
n -octane (C8) 8 n -tetracosane (C24) 2
n -nonane (C9) 8 n -octacosane (C28) 1
n -decane (C10) 12 n -dotriacontane (C32) 1
n -undecane (C11) 12 n -hexatriacontane (C36) 1
n -dodecane (C12) 12 n -tetracontane (C40) 1
n -tetradecane (C14) 12 n -tetratetracontane (C44) 1
n -hexadecane (C16) 10
Packaged 1mL per ampul
Ea. 10-pk.w/data pack
31222 31322
✔ Siltek™ Guard Colums
ID Nominal OD 5-Meter 10-Meter
0.25mm 0.37 ±0.04mm 10026 10036
0.32mm 0.45 ±0.04mm 10027 10037
✔ Siltek™ Inlet Liners Add the appropriate suffix to your Restek liner catalog number.
For a complete inlet liner offering, refer to theRestek Annual Chromatography Products Guide (lit. cat.# 59960).
qty. Siltek™ Siltek™ with Siltek™ wool Siltek™ with CarboFrit™
each -214.1 addl. cost -213.1 addl. cost -216.1 addl. cost
5-pack -214.5 addl. cost -213.5 addl. cost -216.5 addl. cost
25-pack -214.25 addl. cost -213.25 addl. cost -216.25 addl. cost
✔ Siltek™ Press-Tight® Connectors
Type 5-pk. 25-pk. 100-pk.
straight 20480 20449 20481
angled 20482 20483 20484 ✔ Thermolite® Septa
Diameter 25-pk. 50-pk. 100-pk.
5mm 20351 20352 20353
9.5mm 20359 20360 20361
10mm 20378 20379 20380
11mm 20363 20364 20365
11.5mm 22385 22386 22387
17mm 20384 20385 20386
Plug 20372 20373 20374
GC_PC00378 for moreinfo
request the “Stx ®-1HT Benefits Brochure”
(lit. cat.# #59283).