HPLC Guard Columns and Cartridges
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 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.
Sepax Technologies Inc Sepax HPLC Column Bio-C18, Guard cartridge with holder, 5 µm, 300 Å, 2 x 10 mm
Wide range of pore sizes and high compatibility with 100% aqueous phases make Bio-C18 columns ideal for high resolution mapping of peptides and separation of natural and synthetic peptides and small proteins. The specially designed surface bonding chemistry and the pore sizes allow for extended retention and selectivity for polar and hydrophilic compounds, such as peptides and amino acids. C18 monolayer formed by special bonding chemistry does not collapse in pure aqueous solution.
Trajan Scientific HPLC Reverse Phase Protecol C18 1/EA
C18G x 5 m particle size x 120 pore size 250 mm length x 4 6 mm ID stainless steel with guard ProteCol HPLC column
Sepax Technologies Inc Sepax HPLC Column Bio-C18, 3 µm, 300 Å, 4 x 10 mm
Wide range of pore sizes and high compatibility with 100% aqueous phases make Bio-C18 columns ideal for high resolution mapping of peptides and separation of natural and synthetic peptides and small proteins. The specially designed surface bonding chemistry and the pore sizes allow for extended retention and selectivity for polar and hydrophilic compounds, such as peptides and amino acids. C18 monolayer formed by special bonding chemistry does not collapse in pure aqueous solution.
Waters Corp Spherisorb Silica Guard Cartridge, 80Å, 5 µm, 4.6 mm X 30 mm, 3/pk
The Spherisorb silica chemistry is general purpose unbonded silica substrate designed for normal phase applications.
Tosoh Bioscience LLC TSKGEL CM-5PW GUARDGEL KIT
Kit, Guardgel; For 7.5mm I.D. Tosoh TSKgel CM-5PW column; Media: Polymer
Waters Corp ACQUITY UPLC VanGuard Pre-column, HSS C18, 1.8 μm, 100Å, 2.1 mm × 5 mm
These pre-columns protect and prolong analytical column lifespan without compromising performance. They remove contamination, connecting directly to the column inlet to minimize extra column volumes and reduce leaks.
- Ultra-performance general purpose C18 bonded phase.
- Superior peak shape for bases.
- Increased retention.
- Extended column lifetimes at low pH.
- Scalable and transferable to HPLC separations.
- Direct connection to column inlet.
- Removes particulate and chemical contamination.
- Patented, one-piece design.
- Low dispersion.
- Compatible with various column stationary phases.
- Extends column lifetimes by replacing cartridge.
- Reusable holder with adjustable ferrule.
- Operational temperatures up to 90°C.
- Tolerates pressures up to 18,000 psi (1241 bar or 124 MPa).
- pH range of 1 to 8.