HPLC Guard Columns and Cartridges
Sepax Technologies Inc Sepax HPLC Column BR-C18, Guard cartridge with holder, 3 µm, 120 Å, 4 x 10 mm
Utilizing highest purity and enhanced mechanical stability silica and pure bonding reagents, BR-C18 bonded phases have been innovatively and specially designed to ensure maximum surface coverage and full end-capping, which leads to carbon content as high as 19.0%. The bonding chemistry is completely controlled that results in very reliable column-to-column reproducibility. The maximum surface coverage allows BR-C18 to have exceptional stability, resulting in high pH stability in the range of 1.5 to 10.5.
Waters Corp Guard Column, 450Å Pore, 2.5 μm Particle, 4.6 mm ID, 30 mm Length
This guard column contains 2.5 μm particles and is based on Ethylene Bridged Hybrid (BEH)-based particle technology with a diol-bonded surface coating. It is designed for separating proteins ranging from 100K to 1,500K Daltons.
- Chemistry: SEC
- PH range: 2 to 8
- Maximum pressure: 3000 psi (207 bar)
- Particle size: 2.5 μm
- Pore size: 450 Å
- QC tested: Protein
- Format: Guard column
- System compatibility: UPLC, UHPLC, HPLC
- Particle technology: BEH
- USP classification: L20, L33, L59
- Designed for the separation of proteins ranging from 100K to 1,500K Daltons.
Waters Corp Waters Radial-Pak Guard, Silica, 10 μm, 25 mm × 10 mm
This 10μm silica packing material provides high-efficiency and low backpressure, making it suitable for a variety of chromatographic applications.
- Chemistry: Silica
- Separation mode: Normal-Phase
- Particle substrate: Silica
- pH range: 2 to 8 pH
- Temperature limits: 45°C
- Maximum pressure: 1500 psi (100 Bar)
- Endcapped: No
- Bonding technology: Silica
- Silanol activity: Low
- Particle shape: Irregular
- Particle size: 10 μm
- Endfitting type: Waters
- Pore size: 125 Å
- Format: Radial-Pak Guard
- Surface area: 330
- System: HPLC preparative
- Technique: LC/MS, LC
- USP classification: L3
- Inner diameter: 25 mm
- Length: 10 mm
- Product type: Guards
- Units per package: 2 pk
Waters Corp Guard, Porasil Silica, 15 to 20 μm, 125 Å, 25 mm x 10 mm
This Waters Porasil Silica Radial-Pak Guard is designed for various chromatographic applications. It features a robust Porasil Silica phase with a particle size of 15 to 20 μm and a pore size of 125 Å, ensuring efficient separation and protection for your analytical columns. The guard has dimensions of 25 mm ID and 10 mm length, suitable for a range of systems.
- Guard type
- Porasil silica phase
- Silica phase type
- Particle size: 15 to 20 μm
- Pore size: 125 Å
- Dimensions: 25.0 mm ID, 10 mm length
- USP L3 classification
Waters Corp DeltaPak C4 Radial-Pak Column, 100Å, 15 µm, 47 mm X 300 mm, 1/pk
Delta-Pak packings, ideal for the separation of peptides, proteins, and natural products, are based on a highly stable, bonded, endcapped 5µm or 15µm spherical silica. Delta-Pak is available in two different pore sizes (100Å and 300Å) with either C4 or C18 bonded phase. Delta-Pak packings are available in different cartridge and column configurations, providing consistent and predictable scale-up capabilities for milligram-to-gram scale purification. Also, by having the same chemistry available on a high-efficiency 5µm particle, you can easily check the purity of your fractions.
Waters Corp DELTA-PAK C18 Guard Inserts, 5 μm, 300 Å
The DELTA-PAK C18 Guard Inserts are designed for use with Waters systems, offering reliable performance for various chromatographic applications.
- Particle size of 5 μm
- Pore size of 300 Å
- Supplied in a pack of 10
Waters Corp Nova-Pak C18 Radial-Pak Guard, 60Å, 6 µm, 40 mm X 10 mm, 2/pk
Nova-Pak HR C18 columns are silica-based, semi-preparative and preparative columns that are based on 6 µm particle technology. Compared to a 5 µm column, Nova-Pak HR columns offer higher resolution, more efficient separations, and faster chromatography.
Waters Corp WATERS CORPORATION VanGuard Pre-column, 2-Ethylpyridine, 130 Å, 1.7 μm, 2.1 mm × 5 mm
This pre-column is designed and tested for the ACQUITY UPC2 system, demonstrating high efficiency and resolution. It ensures excellent peak shapes under Supercritical Fluid (SFC) conditions for well-retained basic achiral compounds, without the need for mobile-phase additives, due to the reduction and control of surface silanol activity on its particles.
- Designed for ACQUITY UPC2 system
- High efficiency and resolution
- Excellent peak shapes under SFC conditions
- No mobile-phase additives required
- Suitable for well-retained basic achiral compounds
- 2-Ethylpyridine chemistry
- Supercritical Fluid (SFC) separation mode
- 1.7 μm particle size
- 130 Å pore size
- VanGuard pre-column format
- 2.1 mm internal diameter
- 5 mm length
- Maximum pressure of 6000 psi (415 Bar)
Optimize Technologies OPTI-GUARD™ Biocompatible 1mm Guard Column, Cation Exchange (SCX), 5pk
OPTI-GUARD™ sets the standard for extremely low impact, easy to use pre-column protection. Designed for use with analytical (4.6, 3.0 mm i.d.) and narrow-bore (2.1, 1.0 mm i.d.) columns, the patented floating stem design automatically adjusts to any manufacturer's tube stop depth for a zero-dead-volume connection every time. The best part? It's no larger than a standard fitting. Connecting the OPTI-GUARD™ requires no extra tubing, maintaining the minimal impact philosophy that has made the OPTI-GUARD™ line so popular. As always, custom packing is available. Key Features include: 5 disposable hand-tight holders and cartridges, a ZDV Connection, automatic adjusting to any manufacturer's column, no extra tubing is required for connection, the product does not effect chromatography, and it is no larger than a standard fitting.