Rtx-DHA Columns (fused silica)

Crossbond 100% dimethyl polysiloxane—optimized for hydrocarbon analysis

Columns meet or exceed all ASTM D6730-01 and CAN/CGSB 3.0 No. 14.3-99 method guidelines; test report for method D6730 supplied with each column.
Excellent responses and peak symmetry for polar oxygenates.
Can be used for ASTM D5134, D6729, D6733, D5501, D5441, D7266, and D7871. For more information, see our ASTM Method Product Guide.
Temperature range: -60 °C to 340 °C.

Don't forget: The ASTM D6730 method also requires a tuning column—Rtx-5 DHA Tuning Column

Technical Literature: Faster Detailed Hydrocarbon Analysis (DHA) Using Hydrogen

Documentation and Instructions Sheets

Instruction Sheet: GC Columns Installation Guide

Rtx-DHA Columns (fused silica)

Chromatograms

Additional Product Details

Product Options

Not sure which Restek product is the best for your analysis? Consult a Technical Specialist

Catalog #							Clear All
10149	Rtx-DHA-150	1.0 µm	0.25 mm	150 m	-60 to 280/340 °C	ea.	Select Deselect
Catalog # 10149 Product Name Rtx-DHA-150 df (Film Thickness) 1.0 µm ID 0.25 mm Length 150 m Temp Limits -60 to 280/340 °C Units ea. Often Purchased with: Rtx-5 DHA Tuning Column, 5 m, 0.25 mm ID, 1.0 µm
10147	Rtx-DHA-50	0.50 µm	0.20 mm	50 m	-60 to 300/340 °C	ea.	Select Deselect
Catalog # 10147 Product Name Rtx-DHA-50 df (Film Thickness) 0.50 µm ID 0.20 mm Length 50 m Temp Limits -60 to 300/340 °C Units ea. Often Purchased with: Rtx-5 DHA Tuning Column, 5 m, 0.25 mm ID, 1.0 µm
10148	Rtx-DHA-100	0.50 µm	0.25 mm	100 m	-60 to 300/340 °C	ea.	Select Deselect
Catalog # 10148 Product Name Rtx-DHA-100 df (Film Thickness) 0.50 µm ID 0.25 mm Length 100 m Temp Limits -60 to 300/340 °C Units ea. Often Purchased with: Rtx-5 DHA Tuning Column, 5 m, 0.25 mm ID, 1.0 µm

Gasolines are complex mixtures of hundreds of compounds. Information about concentrations of the individual components is important for evaluating raw materials and for controlling refinery processes. ASTM D6730-01 outlines a high-resolution GC method for detailed hydrocarbon analysis (DHA) of gasolines. Rtx-DHA columns are ideal for DHA methods and easily meet or exceed both ASTM D6730-01 and Canadian General Standards Board CAN/CGSB 3.0 No. 14.3-99 requirements. Every Rtx-DHA column is tested for retention, efficiency, stationary phase selectivity, and bleed—guaranteeing reproducible column-to-column performance.