Rtx-1701

Rtx-1701 column

Restek Rtx-1701 GC Columns

Restek Rtx-1701 GC columns are versatile mid-polarity columns engineered to provide enhanced selectivity for halogenated compounds, pesticides, industrial solvents, and multi-functional analytes that challenge less polar phases. Featuring a 14% cyanopropylphenyl, 86% dimethylpolysiloxane stationary phase, Rtx-1701 offers greater polarity than Rtx-1301, enabling improved resolution of compounds with similar boiling points but differing polarity behaviors.

The increased cyanopropyl content provides greater interaction with polarizable and electron-withdrawing analytes, making Rtx-1701 particularly effective for separating chlorinated compounds, organochlorine pesticides, nitro compounds, glycols, plasticizers, and other semi-volatiles. Its robust deactivation chemistry ensures inertness toward active or reactive species, yielding sharp peak shape and consistent quantitation even at trace levels.

Rtx-1701 is frequently used in environmental and industrial testing, including EPA methods for SVOCs, chlorinated solvents, phenols, and pesticides requiring mid-to-high polarity retention characteristics. Its thermal stability, low bleed profile, and predictable retention behavior make it a trusted choice for GC and GC-MS workflows requiring enhanced selectivity beyond standard mid-polar phases.

As an authorized distributor of Restek products, Chrom Tech supplies Rtx-1701 columns in multiple lengths, IDs, and film thicknesses to support laboratories performing routine environmental monitoring, regulated pesticide analysis, impurity profiling, and industrial chemical characterization.
Key Definitions ▸
14% Cyanopropylphenyl Phase
A moderately polar GC stationary phase offering stronger interactions with chlorinated, electron-rich, and polarizable analytes compared to phases such as 1301 or 624.
Organohalogen Selectivity
Rtx-1701’s increased polarity provides enhanced resolution of chlorinated and brominated solvents, pesticides, and industrial compounds, making it suitable for regulated environmental methods.
Semi-Volatile Organic Compounds
A class of compounds with moderate vapor pressures that require higher-temperature GC analysis. Rtx-1701 is suitable for many SVOCs in environmental and industrial workflows.
Electron-Withdrawing Compound Selectivity
Compounds like chlorinated solvents, nitro compounds, and many pesticides interact strongly with mid-polar phases such as Rtx-1701, improving separation efficiency.
Rtx® Deactivation
A proprietary Restek treatment that minimizes active sites and adsorption, resulting in better peak shape for polar, acidic, and reactive analytes.
Frequently Asked Questions ▸
How does Rtx-1701 differ from Rtx-1301?
Rtx-1701 has a higher cyanopropylphenyl content (14% vs. 6%), giving it greater polarity and better resolution of chlorinated solvents, pesticides, and electron-withdrawing compounds.
Is Rtx-1701 suitable for GC-MS analysis?
Yes. Its low bleed, strong inertness, and mid-to-high polarity interactions make it highly suitable for GC-MS separations of SVOCs, chlorinated compounds, and multi-functional analytes.
Which methods commonly specify Rtx-1701?
Rtx-1701 is frequently used in environmental testing, including EPA pesticide, chlorinated solvent, and SVOC methods that require stronger mid-polar selectivity.
What types of analytes benefit most from Rtx-1701?
Chlorinated solvents, nitro compounds, organochlorine pesticides, industrial solvents, glycols, and polar semi-volatiles all benefit from the increased polarity and enhanced selectivity of the Rtx-1701 phase.