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Restek Rxi-624Sil MS GC Capillary Column, 20 m, 0.18 mm ID, 1.00 µm, 13865

Product information "Restek Rxi-624Sil MS GC Capillary Column, 20 m, 0.18 mm ID, 1.00 µm, 13865"

The Rxi-624Sil MS with 20 m length, 0.18 mm inner diameter and 1.00 µm film thickness is the shortest and narrowest version of the Rxi-624Sil MS family in the shop. The phase is a crosslinked Crossbond phase of medium polarity on a fused silica tube and is designed for volatile organics, terpenes and residual solvents.

Phase and properties

Rxi-624Sil MS has intermediate polarity. It is characterised by low column bleed, high thermal stability and an inert surface. The columns are manufactured for column-to-column reproducibility and are well suited to validated methods. As a G43 phase it is used in residual solvent analysis, and the USP class makes it easier to match methods that specify a phase class.

Comparable phases from other manufacturers are Agilent VF-624ms, Phenomenex ZB-624plus and Quadrex 007-502, 007-624 and 007-608. A comparable Phenomenex part number is 7FD-G040-22.

Temperature range

The lower limit is -20 °C. At a constant oven temperature (isothermal) the column runs up to 300 °C, in a temperature program up to 320 °C. These limits apply to all four dimensions of the family.

Selection guide within the family

With 0.18 mm ID and 1.00 µm film, this column has the smallest diameter and the thinnest film of the four dimensions. Anyone transferring an existing method should compare length, inner diameter and film thickness with the method description. With a different dimension, retention times and separation conditions change, and the method has to be revalidated afterwards. The three siblings at a glance:

Part numberLengthInner diameterFilm thicknessAnalyte groupsDifference to this column
1386830 m0.25 mm1.40 µmNitrosamines, solvents, terpenes+10 m, +0.07 mm, +0.40 µm
1386960 m0.25 mm1.40 µmSolvents, terpenes+40 m, +0.07 mm, +0.40 µm
1387030 m0.32 mm1.80 µmAlkylfurans, nitrosamines, solvents, terpenes+10 m, +0.14 mm, +0.80 µm

Typical applications

The column is intended for volatile organics, terpenes and residual solvents (G43 phase). Solvents and terpenes are named as the analyte groups of this dimension.

Technical details

Part number13865
Product lineRxi GC columns
PhaseRxi-624Sil MS
Phase compositionCrosslinked Crossbond phase, medium polarity
PolarityIntermediate
Length20 m
Inner diameter0.18 mm
Film thickness1.00 µm
Column materialFused silica
Lower temperature limit-20 °C
Upper temperature limit isothermal300 °C
Upper temperature limit programmed320 °C
USP phase classG43
Analyte groupsSolvents, terpenes
Pack contents1 piece (single column)

Scope of delivery

One capillary column (single piece) in the stated dimension is supplied. The part number defines length, inner diameter and film thickness unambiguously.

Individual requirements and procurement service

Restek offers further dimensions of the Rxi-624Sil MS and many other phases, lengths and accessories. LT Laborhandel procures them on request, including by Restek part number. Tell us the phase, length, inner diameter and film thickness, and we will get back to you with a quote.