HPLC Guard Columns and Cartridges
Waters Corp ACQUITY Premier Protein SEC Column, 250 Å, 1.7 μm, 4.6 x 100 mm
This SEC column provides reliable protein size variant separations from 10,000 to approximately 650,000 Daltons. It uses MaxPeak Premier High Performance Surfaces and BEH-PEO Particle technologies to minimize unwanted protein-column interactions, enabling generic method development.
- Minimizes secondary ionic or hydrophobic interactions.
- Utilizes novel BEH-PEO Particle technologies.
- Optimized for low dispersion LC systems.
- Offers high method flexibility and robustness.
- Compatible with lower ammonium acetate concentrations for MS.
- eCord Intelligent Chip Technology tracks column performance and QC.
- Achieves excellent resolution for aggregates and fragments.
- Suitable for LC-MS applications with improved recoveries.
- Optional guard column extends analytical column lifetime.
Waters Corp Torus Diol (OH) VanGuard Pre-column, 130 , 1.7 m, 2.1 mm X 5 mm, 3/pk
Torus Diol (OH) VanGuard Pre-column, 130 , 1.7 m, 2.1 mm X 5 mm, 3/pk
Waters Corp Shodex Guard Column, 7 μm, 6 mm, 50 mm
This guard column primarily supports legacy methods and is designed to be used with the KC-811 column.
- Primarily supports legacy methods.
- Guard column for KC-811 column.
- Features a polymer particle substrate.
- Operates effectively within a pH range of 2 to 12.
- Withstands a maximum pressure of 6000 psi (415 Bar).
- Designed with spherical particle shape.
- Equipped with a Parker-style endfitting.
- Suitable for HPLC systems.
Waters Corporation VanGuard Pre-column, BEH Amide, 1.7 μm
This VanGuard pre-column utilizes BEH technology with a chemically stable, trifunctionally bonded amide phase, allowing for the retention and separation of extremely polar compounds across a wide pH range (2 to 12). It connects directly to the UPLC column inlet, minimizing extra column volumes and leaks.
- Protects column from contamination.
- Reduces peak tailing and improves resolution.
- Extends analytical column lifetime.
- Retains polar analytes poorly retained by reversed-phase chromatography.
- Facilitates mobile phase use from pH 2–11.
- Increases chemical stability for high pH and temperature applications.
- Prevents Schiff base formation, enhancing quantitation.
- Increases mass spectrometry response, simplifying sample pre-treatment.
- Enables high resolution and high-speed analysis with 1.7 μm particle size.
Waters Corp Waters μPorasil Guard Column, 10 μm, 125 Å, 3.9 × 20 mm
The μPorasil silica packing material provides high-efficiency and low backpressure, making it suitable for various chromatographic applications.
- Silica packing material.
- 10 μm particle size for efficient separations.
- Low backpressure for system protection.
- 125 Å pore size.
- 3.9 × 20 mm column dimensions.
- Normal-phase separation mode.
- pH range from 2 to 8.
- Maximum pressure of 6000 psi (415 bar).
- Compatible with HPLC systems.
- Supplied as a 2-pack.
Waters Corp Waters Sugar-Pak Guard-Pak Insert, 10 μm, HPLC, L19
This Guard-Pak Insert is designed to extend the lifetime of analytical columns by removing chemical and particulate contaminants from the mobile phase, thereby enhancing equipment performance. It is suitable for 10 μm particle size columns.
- Utilizes sorbents identical to HPLC columns for optimal compatibility.
- Contains microparticulate cation-exchange gel in calcium form.
- Manufactured under stringent conditions with strict QC for reproducibility.
- Each batch chromatographically tested; individually quality tested.
- Tolerates pressures up to 6,000 psi (415 bar); optimal at 4,000 to 5,000 psi.
- Requires miscible eluents to prevent precipitation.
- Features spherical particle shape and low silanol activity for HPLC systems.
- USP Classification L19, ideal for carbohydrate applications.
Waters Corp Waters C8 Guard Cartridge, 80Å, 5 μm, 4.6 x 10 mm
This guard cartridge is a general purpose, silica-based reversed-phase column designed to extend the lifespan of chromatographic analytical columns. It effectively maintains UPLC, UHPLC, and HPLC separation efficacy by removing chemical and particle impurities from the mobile phase stream.
- Increases chromatographic analytical column lifespan.
- Maintains UPLC, UHPLC, and HPLC separation efficacy.
- Removes chemical and particle impurities.
- Compatible with C8 analytical columns (4.6 mm I.D., 5 μm sorbent particles).
- Operates across a broad mobile phase pH range.
- C8 ligand offers wide pH range, low pH stability, and minimal column bleed.
- Manufactured with strict quality control and performance testing.