HPLC Guard Columns and Cartridges
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.
Sepax Technologies Inc Sepax HPLC Column GP-C18, 3 µm, 120 Å, 4 x 10 mm
GP-C18 uses full coverage bonded silica packing, which provides exceptionally high stability. The unique mono-functional bonding chemistry of GP-C18 avoids the formation of multiple C18 layers. Such uniform stationary phase allows the separation to achieve high selectivity and high efficiency.
Waters Corp SEC Guard Column 5µm 500Å 4.6mm ID
SEC Guard Column 5µm 500Å 4.6mm ID. Appropriate for SEC-MALS of adeno-associated virus (AAV) samples.
Tosoh Bioscience LLC TSKgel UP-SW Aggregate DC Guard Column for 4.6 mm ID column, 3 um, 2 cm L
TSKgel UP-SW Aggregate DC Guard Column for 4.6 mm ID column can be directly connected to the TSKgel UP-SW Aggregate analytical column without tubing between the two columns. A male-type outlet endfitting on the guard column enables the direct connection to the screw-type endfitting of the analytical column.
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
Waters Corp Waters Guard Cartridge, 3.5 μm, 100 Å, 3.9 mm x 20 mm
These reversed-phase guard cartridges feature embedded polar group technology. This technology shields the silica’s residual silanol surface from highly basic analytes, and its reduced silanol activity significantly improves peak shape and resolution.
- Chemistry: C8
- Separation mode: Reversed phase
- Particle substrate: Silica
- pH range: 2 pH to 8 pH
- Maximum pressure: 6000 psi (415 Bar)
- Endcapped: Yes
- Bonding technology: Shield RP8
- Silanol activity: Low
- Particle shape: Spherical
- Particle size: 3.5 μm
- Pore size: 100 Å
- Format: Sentry Guard Cartridge
- Surface area: 335
- System: HPLC
- USP classification: L7
- Inner diameter: 3.9 mm
- Length: 20 mm
- Carbon load: 15%
Tosoh Bioscience LLC TSKGEL ODS-100V GUARD 3PK
Cartridge, Guard; For 4.6mm I.D. Tosoh TSKgel ODS-100V columns; Media: Silica; 3.2mm I.D. x 1.5cm Length; 3/Pk