HPLC Guard Columns and Cartridges
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.
Waters Corp Waters UPLC Glycan VanGuard Pre-column, BEH Amide, 1.7 μm
The BEH Glycan Separation Technology Column is optimized for UPLC systems with fluorescence detection, separating released glycans from biopharmaceuticals as 2-aminobenzamide derivatives. This VanGuard pre-column directly connects to the analytical column's inlet, minimizing extra column volumes and leaks. It safeguards the analytical column from contaminants, enhancing performance by filtering impurities.
- Chemistry: Amide
- Separation mode: Hydrophilic interaction (HILIC)
- Particle substrate: Hybrid
- pH range: 2 to 11 pH
- Maximum pressure: 18,000 psi (1240 Bar)
- Particle size: 1.7 μm
- Pore size: 130 Å
- Endfitting type: Direct-Connect
- Format: VanGuard Pre-column
- System compatibility: UPLC, UHPLC
- Inner diameter: 2.1 mm
- Length: 5 mm
- Molecular weight range: 1,000 to 150,000
- Manufactured under cGMP, ISO 9001 conditions.
YMC America, Inc ODS-AQ guard 120A 5um 10x4mm
YMC-Pack ODS-AQ is a unique reversed-phase material with both a hydrophobic high carbon loading and a relatively hydrophilic surface Because of the hydrophilic surface ODS-AQ can be wetted with polar eluents It provides chromatographers reproducible retention and excellent peak shape in highly aqueous mobile phases including 100% water This is due to the C18 ligands on ODS-AQ actually being lifted from the surface by the action of the eluents penetrating the silica pores Selectivity on YMC-Pack ODS-AQ can be subtly different from that seen on conventional ODS columns Differences in selectivity are most often encountered when analyzing mixtures of relatively polar compounds Typically longer retention and greater resolution are observed with ODS-AQ Available in both 120 and 200 pore sizes YMC-Pack ODS-AQ is well-suited for analysis and purification of peptides and other biomolecules
Waters Corp Waters Styragel Guard Column, 20 μm, 4.6 mm X 30 mm, THF
Styragel Guard Columns are designed to protect and extend the lifetime of analytical columns, especially those with 7.8 mm or 4.6 mm ID. They are suitable for high-resolution analysis of oligomers, epoxies, polymer additives, and low molecular weight samples. These guard columns are manufactured under strict ISO, FDA, and cGMP guidelines.
- Protects analytical columns and extends their lifetime.
- Ideal for high-resolution analysis of oligomers, epoxies, and polymer additives.
- Designed for use with low molecular weight samples.
- Manufactured under strict ISO, FDA, and cGMP guidelines for reproducible technology.
- Helps prevent buildup in system operating pressure caused by contamination.
Waters Corp µBondapak C18 Radial-Pak Column, 125Å, 10 µm, 8 mm X 100 mm, 1/pk
µBondapak C18 columns are general purpose, silica-based, reversed-phase C18 columns that are based on 10 µm particle technology. As a starting point for preparative chromatography, no other column can provide the balance between resolution, throughput and cost.
Waters Corp Waters Styragel GPC Guard Column, 20 μm, 4.6 mm, 30 mm, DMF
Styragel Guard columns increase the lifetime of 7.8 mm or 4.6 mm ID columns. This GPC Guard Column protects GPC Columns in reversed-phase Liquid Chromatography by filtering chemical and particulate impurities from the mobile phase stream, enhancing analytical performance.
- Manufactured under cGMP, ISO 9001 conditions, ensuring optimal performance, selectivity, sensitivity, and speed of analysis.
- Testing results meet high standards and narrow specification ranges for excellent, reproducible performance.
- Produced using premier materials, enhancing the GPC columns\' performance and longevity.
- Removes contaminants, maintaining UPLC, UHPLC, and HPLC separation efficiency.
Waters Corp WATERS CORPORATION Sentry Guard Cartridge, C18, 5 μm, 4.6 mm, 20 mm
XSelect CSH C18 columns function as general-purpose columns, offering alternative selectivity compared to other C18 sorbents. The Charged Surface Hybrid (CSH) technology addresses common column-related issues such as peak shape asymmetry, poor loading for basic compounds, column bleed, and slow mobile-phase re-equilibration.
- Chemistry: C18
- Separation mode: Reversed phase
- Particle substrate: Hybrid
- Minimum pH range: 1
- Maximum pH range: 11
- Maximum pressure: 6000 psi (415 bar)
- Endcapped: Yes
- Silanol activity: Low
- Particle shape: Spherical
- Particle size: 5 μm
- Pore size: 130 Å
- Format: Sentry guard cartridge
- Surface area: 185
- System: HPLC
- Particle technology: CSH
- USP classification: L1
- Inner diameter: 4.6 mm
- Length: 20 mm
- Carbon load: 15%
- Units per package: 2 pk
Waters Corp XSelect Prep Guard Cartridge, 130Å, 5 μm, 19 mm × 10 mm
The XSelect CSH Fluoro-Phenyl Prep Guard Cartridge maximizes selectivity differences for method development, especially with low pH mobile phases. Its non-encapped sorbent enhances retention of acidic compounds and protects prep columns from impurities.
- Maximizes selectivity differences for method development, particularly with low pH mobile phases.
- Non-encapped sorbent enhances retention of acidic compounds.
- High-performance guardrail shields prep columns from impurities and contaminants.
- Preserves lab equipment and samples.
- Compatible with Acquity UPLC Systems.
- Advanced 130Å, 5μm sorbent bed for efficient particulate capture.
- Bonded hybrid silica substrate ensures durability and high-performance.
- Extends the lifetime of prep columns.
Advanced Materials Technology HALO 90 Å ES-CN, 2.7 µm, 2.1 x 5 mm, Guard Column 3pk
HALO ES-CN columns made with innovative Fused-Core particle technology for excellent reproducibility and column lifetimes provide fast, high resolution separations. Available in three particle sizes and a wide range of column dimensions, HALO 90 Å ES-CN columns are optimized for high performance in HPLC, UHPLC, and LCMS small molecule applications.
YMC America, Inc ODS-A guard 120A 10um 20x4mm
YMC-Pack ODS-A is a high-coverage fully-endcapped C18 phase which exhibits exceptional lot-to-lot reproducibility It is available in three different pore sizes and is suitable for the separation of a wide range of compounds YMC-Pack ODS-A in 120 pore size is used for high performance reversed phase separations It has selectivity for the separation of many organic compounds found in pharmaceutical chemical and biotechnology industries 200 ODS-A offers a unique mix of moderately large pores and high surface area for the analysis of compounds ranging from small organics and pharmaceuticals to moderately-sized proteins
YMC America, Inc ODS-AQ guard 120A 3um 10x3mm
YMC-Pack ODS-AQ is a unique reversed-phase material with both a hydrophobic high carbon loading and a relatively hydrophilic surface Because of the hydrophilic surface ODS-AQ can be wetted with polar eluents It provides chromatographers reproducible retention and excellent peak shape in highly aqueous mobile phases including 100% water This is due to the C18 ligands on ODS-AQ actually being lifted from the surface by the action of the eluents penetrating the silica pores Selectivity on YMC-Pack ODS-AQ can be subtly different from that seen on conventional ODS columns Differences in selectivity are most often encountered when analyzing mixtures of relatively polar compounds Typically longer retention and greater resolution are observed with ODS-AQ Available in both 120 and 200 pore sizes YMC-Pack ODS-AQ is well-suited for analysis and purification of peptides and other biomolecules
Optimize Technologies OPTI-MAX Outlet Cartridge Check Valve, 1/8" Ceramic Ball & Seat, Stainless Steel Cartridge, Shimadzu LC-8A
Opti-Max™ Cartridge Check Valves are designed to offer maximum performance and ease of use. From the sharp, consistent threads on OPTI-MAX™ custom housings, to the exacting standards used to match ball/seat sets in OPTI-MAX™ cartridges, every aspect of design and manufacturing reflects an unavoidable fact: when it comes to reliable check valve operation, quality and precision make a big difference. OPTI-MAX™ check valves offer many advantages over OEM check valve systems, and are better designed, better made and more reliable than any other after-market check valve product. Additionally, OPTI-MAX™ Free-Turn™ housings can be removed with the tubing still attached, accelerating check valve maintenance while reducing fitting wear. This item is equivalent to OEM part number
Optimize Technologies OPTI-GUARD 1mm Guard Column, Anion Exchange (SAX), (Black Label), 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.
Advanced Materials Technology HALO 90 Å C18, 2.7 µm, 4.6 x 5 mm, Guard Column 3pk
HALO C18 columns made with innovative Fused-Core particle technology for excellent reproducibility and column lifetimes provide fast, high resolution separations. Available in three particle sizes and a wide range of column dimensions, HALO 90 Å C18 columns are optimized for high performance in HPLC, UHPLC, and LCMS small molecule applications.
Optimize Technologies OPTI-GUARD 1mm Guard Column, Phenyl, (Green Label), 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.