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Restek Rxi-17Sil MS GC Capillary Column, 15 m, 0.25 mm ID, 0.25 µm, 14120

Product information "Restek Rxi-17Sil MS GC Capillary Column, 15 m, 0.25 mm ID, 0.25 µm, 14120"

The Rxi-17Sil MS 14120 has a length of 15 m, an inner diameter of 0.25 mm and a film thickness of 0.25 µm. It is a crosslinked phase of medium polarity for active environmental compounds such as PAHs and for use with sensitive detectors such as MS.

Properties of the phase

Rxi-17Sil MS has intermediate polarity. Its characteristics include high inertness, selectivity and low column bleed. The USP phase class is G3, and the tube material is fused silica.

For anyone coming from another manufacturer: Agilent DB-17ms, Phenomenex ZB-50 and Quadrex 007-17MS are considered comparable phases. Comparable part numbers are Agilent 122-4712 and CP8979 as well as Phenomenex 7EG-G004-11.

Temperature range

The range starts at 40 °C. The upper limit is 340 °C isothermal and 360 °C in a temperature program. The lower limit of 40 °C has to be taken into account when planning starting conditions. The limits are the same for 15 m and 30 m.

Reading the dimensions and temperature data

With 15 m length, 0.25 mm inner diameter and 0.25 µm film thickness, the film value refers to the layer of the phase on the tube wall. The phase is crosslinked, so its polymer chains are linked. The upper limit of 340 °C applies to a constant oven temperature, 360 °C to a run with a temperature program.

Two lengths in the shop

The Rxi-17Sil MS is available here in 15 m and in 30 m, both with 0.25 mm inner diameter and 0.25 µm film thickness. Retention times change with the length, so an existing method has to be re-checked.

Part numberLengthInner diameterFilm thicknessDifference to this column
1412330 m0.25 mm0.25 µm+15 m

Typical applications

The column is intended for active environmental compounds such as PAHs and for operation with sensitive detectors such as a mass spectrometer.

Technical details

Part number14120
Product lineRxi GC columns
PhaseRxi-17Sil MS
Phase compositionCrosslinked phase of medium polarity
PolarityIntermediate
Length15 m
Inner diameter0.25 mm
Film thickness0.25 µm
Column materialFused silica
Lower temperature limit40 °C
Upper temperature limit isothermal340 °C
Upper temperature limit programmed360 °C
USP phase classG3
Comparable phases from other manufacturersAgilent DB-17ms, Phenomenex ZB-50, Quadrex 007-17MS
Comparable part numbers from other manufacturersAgilent 122-4712, Agilent CP8979, Phenomenex 7EG-G004-11
ApplicationsActive environmental compounds such as PAHs, use with sensitive detectors such as MS
Pack contents1 piece (single column)

Scope of delivery

One capillary column (single piece) with a length of 15 m is supplied. Part number 14120 defines length, inner diameter and film thickness.

Individual requirements and procurement service

Restek offers the Rxi-17Sil MS in further dimensions, plus many other phases and accessories. We procure them on request, including by Restek part number. Let us know the version you want, ideally with the part number or with phase, length, inner diameter and film thickness, and we will get back to you with a quote.