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Restek at the Gulf Coast Conference
Booth #310
October 13-14, 2009, 8:30 AM-5:00 PM
Moody Gardens Convention Center
Seven Hope Blvd.
Galveston, Texas 77554
Wednesday, October 14
12:45 PM - Exhibit Hall Room
The DHA-150 Fused Silica Column,
the New Robust and Inert Solution for ASTM Method D5501
Barry Burger
Restek's new DHA-150 fused silica column is the newest addition to its petroleum GC column line. The DHA-150 column is a 150 meter x 0.25mm ID x 1.0µm df fused silica column specifically engineered for the detailed hydrocarbon analysis of gasoline, and also of natural gas and LPG at above ambient temperatures. The new DHA-150 column is suitable for use in ASTM method D5501 for the determination of ethanol content in denatured ethanol fuel. The column can be used to determine ethanol content in the range of 20 - 99% and methanol content in the range of 0.1% - 0.6%. Excellent linearity is obtained and peak symmetry for both compounds is unsurpassed, resulting in highly accurate quantification. This poster presentation will demonstrate the robustness and inertness of the new DHA-150 fused silica column.
Wednesday, October 14
11:00 AM - Daffodil Room
Analysis of Gases and Volatiles using the New Range of Bonded PLOT Columns:
Extending Stability of PLOT Columns and Revisiting the use of Metal PLOT Columns
Jaap de Zeeuw, Rick Morehead, Jan Pijpelink, Tom Vezza, and Barry Burger
PLOT columns are widely used in many petrochemical applications. The main advantages are, that PLOT columns are highly selective and that analysis temperatures can be set much higher, compared to liquid stationary phases. However, the utility of PLOT columns has always been limited by the mechanical instability of the adsorption layers. Restek has successfully stabilized porous polymers, alumina, and molsieve adsorbents and deposited these layers in fused silica and MXT (metal) capillary columns. Columns show high capacity for volatiles, as well as high inertness, which improves impurity analysis. Adsorbent layers are very stable, reducing particle elution and providing excellent column-to-column reproducibility. Columns have been made using 0.53-0.18mm capillary tubing, demonstrating the flexibility of the coating techniques. Several applications using this new generation of PLOT columns will be discussed.
Wednesday, October 14
10:30 AM - Daffodil Room
Latest Developments in High Temperature Analysis:
Inert Rxi® Columns that go to 400°C
Jaap de Zeeuw, Jan Pijpelink, Val Strom, Barry Burger, and Roy Lautamo
Stationary phase stabilization has been an ongoing theme in capillary GC. Many low bleed phases have been developed, and, with the availability of more stable outside coatings like metal and high temperature polyimide, the application of GC can be extended to approximately 380-400°C. Stationary phases can be designed to withstand more thermal stress, but it is essential to use the thinnest films possible in order to elute components at the lowest possible temperatures. In this presentation we will discuss the applications and limitations of high temperature phases (Rxi®-5HT and Rxi®-1HT) as well as new developments for improving the stability of 100% PDMS for high temperature simulated distillation.
Wednesday, October 14
8:45 AM - Daffodil Room
Troubleshooting Petrochemical Applications
Jaap de Zeeuw
The chromatogram is like a fingerprint; looking at retention times, peak shapes, and area responses will tell us a lot about possible problems that we have to solve. In this seminar we will discuss several common problems that people may encounter in the lab. A lot of practical experience and tips are shared to help you solve challenges in your daily work.
For more information on the Gulf Coast Conference, please visit www.gulfcoastconference.com
