Rtx-35 Amine

Rtx-35 Amine column

Restek Rtx-35 Amine GC Columns

Restek Rtx-35 Amine GC columns are specially engineered versions of the Rtx-35 phase designed to deliver superior inertness and peak shape for primary, secondary, and tertiary amines—compounds that commonly show adsorption, tailing, or poor recovery on conventional GC phases. The 35% phenyl, 65% dimethylpolysiloxane chemistry provides enhanced polarity and aromatic selectivity, while the proprietary amine-optimized deactivation dramatically reduces interactions with active sites.

These columns are ideal for analyzing volatile, semi-volatile, and structurally diverse amines found in environmental samples, chemical manufacturing, pharmaceutical intermediates, industrial hygiene monitoring, and food flavor/aroma applications. Rtx-35 Amine delivers exceptional resolution of aliphatic, aromatic, heterocyclic, alkyl, and substituted amines—ensuring sharp, symmetrical peaks even at trace levels.

Offering low bleed, high thermal stability, and reliable column-to-column reproducibility, Rtx-35 Amine supports both GC and GC-MS workflows that require high sensitivity and strong inertness for reactive nitrogen-containing compounds. This specialized amine phase provides an ideal blend of increased polarity, aromatic interaction, and optimized surface treatment for laboratories requiring accurate, high-resolution quantitation of challenging amine analytes.

Chrom Tech, as an authorized Restek distributor, supplies Rtx-35 Amine columns in multiple dimensions to support targeted amine workflows, method development, industrial compliance testing, and routine amine analysis across a broad range of industries.
Key Definitions ▸
Amines (Primary, Secondary, Tertiary)
Organic compounds containing nitrogen that often exhibit adsorption and tailing on active GC surfaces. Rtx-35 Amine columns are optimized to avoid these issues.
Amine-Inert Deactivation
A specialized Restek deactivation process that minimizes interactions between amines and active sites, significantly improving peak shape, recovery, and sensitivity.
35% Phenyl Polysiloxane Phase
A medium-polarity stationary phase that offers increased aromatic and dipolar interactions, supporting improved separation of structurally diverse amines.
Nitrogenous Compound Selectivity
The optimized surface chemistry provides strong inertness and reliable retention for volatile and semi-volatile amines, including complex substituted or heterocyclic structures.
Rtx® Deactivation
Restek’s proprietary deactivation process reduces reactive sites in the column, ensuring sharp peaks and improved quantitation for amines and other active compounds.
Frequently Asked Questions ▸
Why choose Rtx-35 Amine instead of a standard Rtx-35 column?
The amine-optimized deactivation dramatically improves peak shape and recovery for nitrogen-containing analytes, which often tail or degrade on standard GC surfaces.
Is Rtx-35 Amine suitable for GC-MS analysis?
Yes. The column’s low bleed and strong inertness make it highly compatible with GC-MS, especially for trace-level amine analysis.
What industries commonly use Rtx-35 Amine columns?
Environmental testing labs, chemical and petrochemical facilities, industrial hygiene programs, pharmaceutical R&D, and flavor/fragrance development frequently use Rtx-35 Amine for analyzing volatile and semi-volatile amines.
What types of amines benefit most from this specialized phase?
Aliphatic, aromatic, heterocyclic, alkyl-substituted, and multifunctional amines—especially those prone to adsorption or tailing—show significantly improved performance on the Rtx-35 Amine phase.