HPLC Guard Columns and Cartridges
Waters Corp Waters VanGuard Pre-column, BEH, 130Å, 1.7 μm, 2.1 mm x 5 mm
Designed and tested for the ACQUITY UPC2 system, this VanGuard pre-column utilizes sub-2-μm and 3.5 μm particles to deliver high efficiency and resolution. It ensures excellent peak shapes for various compounds, including well-retained basic achiral compounds, by controlling surface silanol activity, thereby eliminating the need for mobile-phase additives under SuperCritical Fluid (SFC) conditions.
- Designed for ACQUITY UPC2 system.
- Provides high efficiency and resolution.
- Utilizes hybrid particle substrate.
- Achieves excellent peak shapes without mobile-phase additives.
- Suitable for SuperCritical Fluid (SFC) and SFC/MS techniques.
- Features 130Å pore size.
- Includes 1.7 μm spherical particles.
- Operates up to 6000 psi (415 Bar) maximum pressure.
- Has a 2.1 mm inner diameter and 5 mm length.
- Available in a 3-pack.
Waters Corp VanGuard Cartridge, Phenyl-Hexyl, 130Å, 5 μm
XSelect CSH Phenyl-Hexyl VanGuard Cartridges are designed to extend the lifetime and performance of analytical columns by removing particulate contamination from the mobile phase stream. This cartridge is optimized for all 2.1 mm and 3.0 mm I.D. XSelect CSH Phenyl-Hexyl analytical columns that contain 5 μm sorbent particles.
- Chemistry: Phenyl
- Separation mode: Reversed Phase
- Particle substrate: Hybrid
- pH range: 1 pH to 11 pH
- Maximum pressure: 18000 psi (1240 Bar)
- Endcapped: Yes
- Bonding technology: Phenyl-Hexyl
- Silanol activity: Low
- Particle shape: Spherical
- Particle size: 5 μm
- Pore size: 130 Å
- Surface area: 185
- Particle technology: CSH
- USP classification: L11
- Inner diameter: 2.1 mm
- Length: 5 mm
- Carbon load: 14%
- Units per package: 3
Waters Corp Shodex KS-G Guard Column, 7 µm, 6 mm x 50 mm, 1/pk
Shodex polymeric columns for sugar and carbohydrate analysis
Optimize Technologies OPTI-GUARD™ Biocompatible 1mm Guard Column, Silica, 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.
YMC America, Inc AMINO 3UM 120A 20X4MM PK/5
NH12S03-0204GC: Amino, 3um, 120A, 20X4mm Cartridge, pk/5
Sepax Technologies Inc Sepax HPLC Column Proteomix SCX, NP5, Guard cartridge with holder, 4 x 10 mm
Proteomix ion-exchange phases have been innovatively developed for achieving high ion-exchange capacity, a breakthrough technology for non-porous resins. Proteomix packing support is composed of a rigid, spherical, highly cross-linked poly(styrene divinylbenzene) (PS/DVB) non-porous bead with particle size selections of 1.7, 3, 5 and 10 µm. The PS/DVB resin surface is grafted with a highly hydrophilic, neutral polymer thin layer with the thickness in the range of nanometer. The hydrophobic PS/DVB resin surface is totally covered by a hydrophilic coating that eliminates non-specific bindings with biological analytes, leading to high efficiency and high recovery separations for biological molecules.