InertCap ProGuard (Build-in Guard Column), InertCap 1MS, I.D. 0.25mm, Length 30m, Film Thickness 0.25µm, Guard Column Length 10m, GL Sciences Inc. (CAT#: STEM-C-9128-LC)

Guard columns and retention gaps are used widely in gas chromatography. Both of them are short (1-10 m) piece of uncoated deactivated fused silica tubing which are placed in-line between the GC injection port and the analytical capillary column. Guard column is to protect the analytical column from contamination, not allowing nonvolatile materials to reach the analytical column. Retention gap is to help focus the compounds in large volume injected from the inlet to a small band at the head of the analytical column. InertCap ProGuard manufactured by GL Sciences Inc. is a "guard column built-in" analytical capillary column without the connection for such purposes. For this reason, now there is no need to worry about leakage and compounds adsorption.

Stationary Phase: InertCap 1MS
I.D.: 0.25mm
Length: 30m
Film Thickness: 0.25µm
Guard Column Length: 10m
Max. Temperature: iso.325°C-prog.350°C
Qty.: 1pc

Rtx-200 Columns (Fused Silica), Length 60 m, ID 0.25 mm, df 0.50 μm, Temp. -20 to 310/330°C, Restek (CAT#: STEM-C-0517-LC)