Zebron ZB-MultiResidue-2 GC Columns
Improved Multi-Residue Pesticide Screening by GC-MS
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Zebron ZB-MultiResidue-2 GC Columns
Guaranteed Performance for Pesticides and Insecticides
- Specially engineered column set specifically designed for pesticide screening and confirmation by GC-ECD, GC-NPD, and GC-MS
- Resolve common pesticide isomers with optimized selectivity for food and environmental samples
- Improved inertness for decreased breakdown of sensitive pesticides such as DDT
- Exceed EPA Method 8081 specifications for dual column confirmation when used with ZB-MultiResidue-1
Need an alternate selectivity for dual-column GC/ECD confirmation? See ZB-MultiResidue-1.
Running chlorinated herbicides or haloacetic acids? Pair ZB-XLB and ZB-35.
Recommended Applications
Aroclors/PCBs, Haloacetic Acids, Herbicides, Insecticides, Multi-Pesticide Screening, Nitrogen Containing Pesticides, Organochlorine Pesticides, Organophosphorous Pesticides
Overview
Upgrade to Zebron from these similar* phases:
Agilent® | Restek® |
DB®-CLP1 | Rtx®-CLPesticides |
| DB-CLP2 | Rtx-CLPesticides2 |
Stx®-CLPesticides | |
| Stx-CLPesticides2 |
Improved Multi-Residue Pesticide Screening by GC-MS
Columns: | Zebron MultiResidue™-1 |
Dimension: | 30 meter x 0.25 mm x 0.25 µm |
Detector: | MSD @ 320 °C; 45-400 amu |
Part No.: | 7HG-G016-11 |
Injection: | Splitless @ 260 °C, 1 µL |
Carrier Gas: | Helium @ 0.9 mL/min (constant flow) |
Oven Program: | 80 °C for 0.5 min to 150 °C @ 10 °C/min to 240 °C @ 4 °C/min to 320 °C @ 15 °C/min for 3 min |
Sample:
Analytes were 1 ppm in Dichloromethane
Resolve Common Pesticide Isomers
ZB-MultiResidue optimized selectivities improve resolution of complex pesticide, herbicide, and insecticide isomers. Our extremely stable siloxane-based polymer contains absolutely no nitrogen or halogenated functionality, which can be unfriendly to NPD and ECD detectors. Engineered Self-Crosslinking™ (ESC™) bonding incorporates ladders into the phase backbone for low bleed and unmatched spectral integrity – even for trace-level samples.
Columns: | Zebron ZB-MultiResidue-1 |
Dimension: | 30 meter x 0.25 mm x 0.25 µm |
Detector: | MSD @ 320 °C, 45-400 amu |
Part No.: | 7HG-G016-11 |
Injection: | Splitless (hold 0.5 min) @ 260 °C, 1 µL |
Carrier Gas: | Helium @ 0.8 mL/min (constant flow) |
Oven Program: | 100 °C for 0.5 min to 200 °C @ 25 °C/min to 320 °C @ 15 °C/min for 2 min |
Sample:
1. o,p-DDE
2. p,p-DDE
3. o,p-DDD
4. o,p-DDT
5. p,p-DDD
6. p,p-DDT
Great Results for Organophosphate Pesticides
Columns: | Zebron MultiResidue-1Zebron MultiResidue-2 |
Dimension: | 30 meter x 0.32 mm x 0.50 µm30 meter x 0.32 mm x 0.25 µm |
Detector: | FID @ 340 °C |
Part No.: | 7HM-G016-177HM-G017-11 |
Injection: | On-Column @ 103 °C, 1 µL |
Carrier Gas: | Helium @ 2.8 mL/min (constant flow) |
Oven Program: | 100 °C for 0.5 min to 180 °C @ 20 °C/min to 240 °C @ 6 °C/min to 320 °C @ 15 °C/min for 2 min |
Note: | Columns connected using a 5ms Z-Guard Column and a “Y” splitter. |
Sample:
Analytes are 2 ppm in Dichloromethane.
1. Dichlorvos
2. Mevinphos
3. Trichlorfon
4. TEPP (Tetraethyl Pyrophosphate)
5. Demeton Isomer
6. Thionazin
7. Ethoprop
8. Sulfotep
9. Naled
10. Dicrotophos
11. Phorate
12. Monocrotophos
13. Demeton
14. Terbufos
15. Diazinon
16. Dimethoate
17. Fonofos
18. Phosphamidon Isomer
19. Disulfoton
20. Dichlofenthion
21. Phosphamidon
22. Chlorpyrifos Methyl
23. Ronnel
24. Aspon
25. Methyl Parathion
26. Malathion
27. Fenitrothion
28. Chlorpyrifos
29. Fenthion
30. Trichloronate
31. Parathion
32. Merphos
33. Chlorfenvinphos
34. Crotoxyphos
35. Stirofos
36. Tokuthion
37. Merphos Oxide (Tribufos)
38. Ethion
39. Fensulfothion
40. Contaminant
41. Carbophenothion
42. Famfur
43. EPN
44. Phosmet
45. Leptophos
46. Azinphos Methyl
47. Azinphos Ethyl
48. Coumaphos
Documents
- Guide: GC Troubleshooting Quick Reference Guide
- Guide: Zebron GC Column Selection Chart
- Brochures: Zebron Gas Management Brochure
- Supporting Docs: Zebron Gas Filter User Guide
- Brochures: GC FAQ - Troubleshooting Highlights from Webinar
- Brochures: Advanced Pesticide Testing Using Zebron GC Columns
- Guide: Persistent Organic Pollutants (POPs) by GC
- Brochures: Phenova CRMs for Environmental Analysis Brochure
- Technical Notes: Multi-Residue Pesticide Screening by GC-MS (TN-2021)
- Brochures: Complete GC Solutions for Pesticides and Semi-Volatiles Testing
- Supporting Docs: Zebron Gas Filter Selection Tool
FAQs
Can you use organic solvents in with Biozen SEC or Yarra SEC?
Occasionally to facilitate a true entropic SEC separation a small amount of an organic modified such as ACN is required however more than 15% may result in de-naturing or unfolding of the protein to occur and should be avoided.
Can I pack or re-pack my GC liner with wool?
Though the upfront cost of self-packing your liner may seem attractive, the time and headaches caused by resulting tailing or irreproducible peaks can be sizeable! Self-packed wool fibers commonly break during installation and any existing deactivation on the liner can also be scratched or damaged. Scratches in the deactivation layer are likely to occur when removing wool from the liner or re-packing it with new wool. Also, when wool is forcefully inserted or removed, these scratches could expose active sites, resulting in peak tailing and poor reproducibility. Pre-packed Zebron PLUS liners undergo the deactivation process with the quartz wool already in place, which ensures that any active sites that form during packing are not exposed. Its novel touchless packaging and preinstalled O-ring prevent contamination during installation.
Does the Zebron PLUS liner with wool improve my GC column lifetime?
Yes. Zebron PLUS liners are packed with quartz wool, which serves two purposes: a) Quartz wool promotes homogenous vaporization of analytes and solvent in the inlet to effectively transfer them to the head of the GC column. b) Quartz wool acts as a filter, trapping non-volatile impurities and preventing them from proceeding further into the GC column.
I work with dirty samples which produce a residue on my GC liner after approximately 100 injections. Can I scrub/sonicate my liner and reuse it?
It is not recommended to scrub/sonicate your liners. Residue formation indicates contamination. More specifically, this shows that the sample contains non-volatile impurities, in which case it is recommended to replace your liner rather than clean it. Sonication can alter the liner’s deactivation, and scrubbing can create scratches and active sites. As a result, you can have several chromatography problems such as poor quantitation, analyte breakdown, poor reproducibility, peak asymmetry, etc.
Is there a way I can get immediate help with my current and upcoming method?
Absolutely, we're always here to help! You can easily get in contact with our team members by clicking contact us on the menu or better yet, just head to www.phenomenex.com/chatnow and we'll help you out with method recommendations and tips.
I am using an inert GC column for my analysis, and I still see peak tailing. What could be the reason for this?
For analysis of active compounds, it is crucial to use both a highly inert column and a highly inert liner. The liner is the first place of potential analyte interaction during GC analysis; it is important that your analytes are not adsorbed. Zebron PLUS liners undergo a rigorous deactivation process and are tested for inertness to ensure reliable results when working with highly active compounds such as underivatized acids and active bases.
When facing peak and resolution issues in sample analysis by GC, where is the best place to start?
The inlet is the most common place where problems happen in gas chromatography. This is because: • The inlet is subjected to very high temperatures. • There are multiple consumables involved in the inlet that need routine maintenance. • Some inlet modes, such as splitless injection, are a slow process, meaning that target analytes and the inlet can interact with each other before the sample enters the column.
Can you recommend a GC liner that work best when analyzing dirty samples, samples with wide boiling points, or samples with wide molecular weight?
Analysis of dirty samples, samples with wide boiling points, or samples with wide molecular weights can be enhanced by choosing a Zebron™ PLUS liner with quartz wool. Liners packed with wool can prevent non-volatile compounds from entering the column and improve sample vaporization for a more robust, reproducible analysis.
Manufacturer information: Zebron ZB-MultiResidue-2 GC Columns – Phenomenex (USA). MAS Brand is the official representative of Phenomenex in Egypt.
Specifications for Zebron ZB-MultiResidue-2 GC Columns
| GC Length (m) | 15 or 20 or 30 |
| GC Internal Diameter (mm) | 0.18 or 0.25 or 0.32 or 0.53 |
| GC Film Thickness (µm) | 0.18 or 0.2 or 0.25 or 0.5 |
| GC Format | Capillary Column or 5-inch Cage |
| GC Option | Standard or Custom or w/ GUARDIAN 5 m, Custom |
| Manufacturer | Phenomenex |
| GC Phase | ZB-MultiResidue-2 |
