Gemini LC Columns
Twin-NX technology HPLC columns - extend your column lifetime
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Gemini HPLC Columns
Twin-NX technology HPLC columns. Extend your column lifetime
Gemini columns are rugged reversed-phase HPLC and PREP LC columns that offer extended lifetime at pH 1-12 conditions and excellent stability for reproducible, high-efficiency separations. The Gemini family contains a variety of useful alkyl and phenyl phases bonded to fully porous organo-silica particles.
Each Gemini column is supplied with a Certificate of Quality Assurance (CQA) indicating testing conditions, operating parameters, and column details.
| Separation technique | Reversed Phase (RP) |
|---|---|
| Application | Small Molecule Analysis |
| Pore size | 100 Å, 110 Å |
| Particle size | 3 µm, 5 µm, 10 µm |
| Phases available | 5 |
| Catalogue codes | 179 |
Phases
Gemini C18
Fully porous C18 organo-silica with TMS endcapping
Recommended Use: Separation of basic compounds under high pH conditions
Particle Size: 10 µm, 5 µm, 3 µm
Gemini C6-Phenyl
Fully porous C6 linked phenyl organo-silica with TMS endcapping
Recommended Use: Separation of aromatic, polar, or basic compounds under high pH conditions
Particle Size: 5 µm, 3 µm
Gemini C8
Recommended Use: —
Particle Size: 10 µm
Gemini C8(3)
Fully porous organo-silica bonded with C8
Recommended Use: Separation of very hydrophobic compounds
Particle Size: 10 µm
Gemini No Phase
Recommended Use: —
Particle Size: 10 µm, 5 µm, 3 µm
Gemini NX-C18
Fully porous organo-silica with TWIN-NX technology bonded with C18
Recommended Use: High efficiency analytical or preparative separations under extreme pH conditions
Particle Size: 10 µm, 5 µm, 3 µm
Gemini PREP C8(3)
Recommended Use: —
Particle Size: 10 µm
Documents
- Brochures: Vitamin Testing Solutions Brochure | Phenomenex
- Guide: 2026 Product Catalog – Explore Full Range | Phenomenex
- Guide: HPLC Troubleshooting - Peak Issues
- Guide: HPLC Troubleshooting - Baseline Issues
- Guide: HPLC Troubleshooting - Pressure Issues
- Guide: HPLC Troubleshooting - Leak Issues
- Guide: PFAS Complete Testing Guide
- Supporting Docs: HPLC Column Care Guide
- Brochures: United States Pharmacopeia (USP) Allowable Adjustments Guide
- Brochures: PFAS Analytical Workflow Solutions
- Technical Notes: Method Modernization of Assay and Organic Impurities in Olaparib per USP
- Technical Notes: Ph. Eur. Method Modernization of Assay and Related substances in Olaparib
Manufacturer information: Gemini HPLC Columns – Phenomenex (USA). MAS Brand is the official representative of Phenomenex in Egypt.
Specifications for Gemini LC Columns
| Column Phase | C18 or NX-C18 PEEK or C8(3) or NX-C18 or C6-Phenyl |
| Column Particle Size | 3 or 5 or 10 |
| Column Length | 10 or 20 or 30 or 50 or 75 or 100 or 150 or 200 or 250 or 300 or N/A |
| Column Internal Diameter | 0.3 or 0.5 or 1 or 2 or 3 or 3.9 or 4 or 4.6 or 10 or 21.2 or 30 or 50 or N/A |
| Column Pore Size | 100 or 110 |
| Column Format | MercuryMS or Bulk Media or Analytical or Capillary / Nano or Preparative (AXIA Packed) |
| Column Option | Standard or AXIA Packed or Capillary or MercuryMS or PEEK Hardware or Shipped in Formic Acid or Standard (04G-4763) |
| Manufacturer | Phenomenex |
