zebron-gc-columns

zebron-zb-1701

Zebron ZB-1701 GC Columns

Alternate Selectivity for Mid-Polarity Analyses

Fast run and re equilibration times for enhanced sample throughput and productivity
Provides alternate selectivity to phenyl phases with similar polarity
Good peak shape for active analytes

Want an even more rugged alternative for pesticide analysis? See ZB-MutliResidue-1
Testing Endrin and DDT? See ZB-1701

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Upgrade to Zebron from any 14 % cyanopropylphenyl / 86 % dimethylpolysiloxane phase:

Agilent^®

Restek^®

SGE^®

Supelco^®

OV^®

DB^®-1701

Rtx^®-1701

BP10

SPB^®-1701

OV-1701

CP-Sil 19 CB

Rtx-VMS

Equity^®-1701

Good Peak Shape for Active Analytes

Aromatic Amines by GC-MS

Column:

Zebron ZB-1701

Dimension:

30 meter x 0.25 mm x 0.25 µm

Part No.:

7HG-G006-11

Injection:

Split 15:1 @ 220 °C, 1 µL

Oven Program:

60 °C for 1 min to 110 °C @ 30 °C/min to 135 °C @ 9 °C/min to 260 °C @ 30 °C/min for 2 min

Detector:

MSD @ 180 °C

Samples:
Analytes are at 1.58 mg/mL each
1. Piperidine
2. 2-Methylpiperidine
3. Aniline
4. Benzylamine
5. α-Phenylethylamine
6. N-Methylaniline
7. m-Toluidine
8. o-Toluidine
9. N,N-Dimethylaniline
10. β-Phenylethylamine
11. N-Ethylaniline
12. 2,4-Dimethylaniline
13. N,N-Diethylaniline
14. Dibenzylamine

Orthogonal Selectivity for Separation

Oxygenated Compounds and Hydrocarbons in Alternative Fuels by Two Dimensional Gas Chromatography using Zebron ZB-1701 and ZB-1 GC Columns

Column 1:

Zebron ZB-1701

Phase:

14 % Cyanopropylphenyl 86 % Dimethylpolysiloxane

Dimension:

30 meter x 0.25 mm x 0.25 μm

Part No.:

7HG-G006-11

Column 2:

Zebron ZB-1

Phase:

100 % Dimethylpolysiloxane

Dimension:

1.5 meter x 0.1 mm x 0.10 μm

Part No.:

7TB-G031-02-C (2 meter trim to 1.5 meter)

Sample:

Coal-derived Oil

Injection:

Split 100:1 @ 250 °C, 0.5 μL

Recommended Linear:

Zebron PLUS Straight Z-Liner™

Part No.:

AG2-0A03-05

Instrument:

Leco Pegasus 3, Agilent 6890N

Carrier Gas:

Helium @ 1.5 mL/min (Constant Flow Mode)

Oven Program:

50 °C for 0.3 min, to 300 °C at 2 °C/min

Modulation:

Dual Jet Cryogenic, Liquid Nitrogen

Modulation Period:

7 seconds

Detection:

Flame Ionization (FID) @ 370 °C

Hydrogen:

30 mL/min

Air Flow:

400 mL/min

Two-dimension contour plot of a coal-derived liquid using GC×GC. The configuration

The results are P for Paraffins, N for Naphthenes, 1A for Mono-aromatics, 2A for Di-Aromatics, 3A for Tri-aromatics, and O for Oxygenated compounds

Three-dimension plot of a coal-derived middle distillate using GC×GC. ZB-1701 x ZB-1

The results are P for Paraffins, N for Naphthenes, 1A for Mono-aromatics, 2A for Di-Aromatics, 3A for Tri-aromatics, and O for Oxygenated compounds

Conclusion

The analysis results obtained using Zebron ZB-1701 and ZB-1 GC columns together enabled the GC×GC-FID system to unravel molecular structures of oxygenated compounds in a coal-derived middle distillate. It also shows that the oxygenated structures mainly consist of phenolic compounds, and this characterization is crucial to help convert coal-derived oils into alternative fuels.

This study showed that compared to conventional configurations, a reversed configuration involving a highly polar column in the first dimension and a non-polar one in the second enables the separation of oxygenates and hydrocarbons in one single run. In fact, the 2D contour plots obtained under these conditions exhibit a good resolution and a high space occupation. Nevertheless, in the future there is still an opportunity to separate the nitrogenates from the oxygenates for improved quantification. Further study is needed utilizing either sample preparation or online fractionation in a multi-technical analytical approach with multi-dimensional gas chromatography.

Acknowledgement: This study was run at IFPEN, and we thank them for their collaboration on this project. Phenomenex is not affiliated with IFPEN.

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18453, 18454, 18445