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Rtx®-200 Columns

Restek Corp.Available: Worldwide

midpolarity phase; Crossbond® trifluoropropylmethyl polysiloxane

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Average Rating 4.6

|3Scientists have reviewed this product

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Restek is one if our most trusted vendors for all things GC.


Average Rating 4.7

Application Area:

Analyze components of customer supplied sample

We can always count of the integrity of Restek GC columns. Additionally, the support staff at Restek are helpful with any questions we have, we generally have a number of questions.

Review Date: 12 Apr 2019 | Restek Corp.

You should consider advertising this phase ASAP to your forensic customers.


Average Rating 4.3

Application Area:

Forensics (drug analysis)

This column is the only way to resolve the many fentanyl derivatives being made. Co-elutions are a problem with RTX-1 and RTX-5 equivalents and therefore some mixtures cannot be analyzed by these most popular phases. Already a couple of neighboring labs adopted the RTX-200 after our lab took the plunge and ordered it first. The only co-elution thus far seen with the RTX-200 is psilocyn and bufotenine. No other problems have been seen yet -- including with cathinone derivatives.

Review Date: 30 Jul 2018 | Restek Corp.

Good column and customer service.


Average Rating 4.7

Application Area:

Analysis of complex environmental samples

This column is exactly what I need for my second dimension in GCxGC analysis. It is robust and I can use it for many runs and it can take a lot of wear and tear without breaking. Restek is also very helpful whenever I have a problem or question with one of their products. If a column is not working well they want to help resolve the problem and understand why that is the case.

Review Date: 27 Jul 2018 | Restek Corp.

Rtx®-200 columns have accomplished many difficult separations not possible on any other bonded stationary phase.

Many analysts consider these the best, most inert midpolarity columns available. The trifluoropropylmethyl polysiloxane stationary phase has a unique selectivity that changes elution orders and resolves compounds that phenyl, cyano, or Carbowax® phases can not. The Rtx®-200 column offers exceptional thermal stability, low bleed, and superior inertness—even for active compounds such as phenols, and with sensitive detectors such as ECDs, NPDs, and MSDs.


  • General-purpose columns for solvents, Freon® fluorocarbons, alcohols, ketones, silanes, glycols, and drugs of abuse. Excellent confirmation column with an Rtx®-5 column for phenols, nitrosamines, organochlorine pesticides, chlorinated hydrocarbons, and chlorophenoxy herbicides.
  • Temperature range: -20 °C to 340 °C.
  • Equivalent to USP G6 phase.


  • Length: 10, 15, 20, 30, 40, 60, 105 m
  • ID: 0.15, 0.18, 0.25, 0.32, 0.53 mm
  • df: 0.15, 0.20, 0.25, 0.40, 0.50, 1.00, 1.50, 3.00 μm

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