HPLC Guard Columns and Cartridges
Optimize Technologies EXP Trap Cartridge, 4.6mm x 5mm, 3.0µm EXP, Phenyl-Hexyl, 3pk
The Hand-Tight EXP™ Trap Column is rated to 20,000+ psi. This unique design connects directly to any injection valve (with 10-32 threads) or in-line with 1/16” tubing for unparalleled convenience and efficiency. The EXP™ System enables chemists to quickly remove detergents or salts which can affect the ionization process in MS work. This trapping technique can concentrate the sample directly on-line, allowing for increased recovery of precious sample material compared to off-line techniques. Free-Turn™ architecture allows users to change cartridges by hand without breaking fluid connections on the holder inlet/outlet. The EXP™ Trap Column family now offers packed beds available in 2, 5, 10, 15, 20 and 30mm lengths with diameters ranging from 1-4.6mm and bed volumes from 1.6-600µL. Please contact your representative directly if you're interested in a length other than 5mm.
Waters Corp XSelect VanGuard Cartridge, C18, 5 μm, 100 Å, 3.9 mm X 5 mm
XSelect HSS C18 VanGuard Cartridges protect analytical columns by removing particulate contamination. Optimized for 4.6 mm I.D. columns with 5 μm sorbent, they feature HSS (High Strength Silica) for enhanced chromatographic performance, higher polar compound retention, and varied selectivity. These cartridges resist UPLC pressures and are scalable to UPLC separations.
- C18 chemistry, reversed phase separation
- Silica spherical particles
- pH range of 1 to 8
- Maximum pressure of 18000 psi (1240 Bar)
- Endcapped with low silanol activity
- 100 Å pore size
- 3.9 mm inner diameter, 5 mm length
- Packaged as 3 units per package
Waters Corp Waters XSelect Sentry Guard Cartridge, HSS T3, 100 Å, 3.5 μm, 3 mm X 20 mm
This column is a fully endcapped, low-coverage C18 bonded-phase column designed to retain extremely polar compounds by reversed-phase in high aqueous mobile phases.
- Chemistry: C18
- Separation mode: Reversed phase
- Particle substrate: Silica
- pH range: 2 to 8
- Temperature limits: 45°C
- Maximum pressure: 6000 psi (415 bar)
- Endcapped: Yes
- Bonding technology: T3
- Silanol activity: Medium
- Particle shape: Spherical
- Particle size: 3.5 μm
- Pore size: 100 Å
- Format: Sentry guard cartridge
- Surface area: 230
- System: HPLC
- Particle technology: HSS
- USP classification: L1
- Inner diameter: 3 mm
- Length: 20 mm
- Carbon load: 11 %
- Units per package: 2 pk
Microsolv Technology Corporation Guard Column Cartridges, RP C18 ABX, 3um, 100A. 4.0mm ID x 10mm Length. 5/PK.
These Guard Column Cartridges are packed with 3µm, Cogent RP C18 ABX™ Stationary Phase. They are specially end capped ( bulky ), with traditional bonding of an 18 carbon ligand to the highest purity silica available.Designed to protect your 3.0, 4.0 or 4.6mm ID, RP C18 ABX, Analytical Columns from particulate and contaminants that will adsorb to it. They are packed in Stainless Steel Tubes and have Stainless Steel Frits that are pressed into PEEK Frit Caps. These Guard Column Cartridges must be used with a Guard Column Holder.
Waters Corp XSelect Guard Cartridge, T3, 3.5 μm, 2.1 mm x 10 mm
This guard cartridge features a trifunctional alkyl C18 bonded phase for 100% aqueous compatibility and ultra-low MS bleed. It enhances polar compound retention and is fully scalable and transferable for HPLC and UPLC separations.
- Trifunctional alkyl C18 bonded phase: compatible with 100% aqueous mobile phases, offering versatility.
- Ultra-low MS bleed: ensures cleaner baselines and improved signal-to-noise ratios in mass spectrometry.
- Superior polar compound retention: optimizes separation of challenging polar analytes.
- Fully scalable and transferable: seamless method transition between HPLC and UPLC systems.
- Silica particle substrate: provides a robust foundation for consistent performance.
- Sentry guard cartridge format: protects analytical columns from contamination, extending lifespan.
Optimize Technologies EXP2 Replacement Stems, 0.68µL, 2.7µm HALO, C18, 3pk
Specialized features, patented technology, precision engineering and state-of-the-art manufacturing make the new EXP2 Stem Trap an unbeatable choice for ultra high-pressure trapping applications. Its slim architecture allows it to easily fit into crowded instrument compartments or to connect directly to tightly-spaced injection ports. When tightened by hand, the EXP2 Stem Trap seals to 8,700+ psi. Additionally, the product can be wrench tightened to 20,000+ psi (1,400+ bar). The unique packed floating stem installs directly into any 10-32 port and automatically adjusts to provide a perfect ZDV connection. The new EXP2 design incorporates an integral ferrule into the front-end of the holder so there is no separate ferrule to lose! The replacement stems are also low volume/ low-dispersion, intended for many repeat uses and is available with various bed volume and custom packing options. This product is recommended for nano flow applications. For use with EXP™2 Stem Holder Only
Mac-Mod Avantor Prevail CN, 110 Å, 5 µm, 2.1 x 7.5 mm Guard Cartridges (3/pk)
Avantor Prevail HPLC columns exhibit long column lifetime in both highly aqueous and highly organic mobile phases. Avantor Prevail HPLC columns are silica based except for Prevail Carbohydrate ES. The stability of these phases is such that a single column can be switched between highly aqueous for analysis of highly polar analytes and highly organic for strong retention of hydrophobic analytes. Avantor Prevail HPLC columns are stable from highly organic to highly aqueous. Avantor Prevail HPLC columns are specialty phases for specific applications. Avantor Prevail HPLC columns provide excellent sensitivity with microbore and ELSD applications.
Mac-Mod Princeton 4-Ethylpyridine 100 Å, 5 µm, 21.2 x 10 mm Guard Cartridges (1/pk)
Princeton Chromatography Achiral SFC columns are designed and manufactured in the US, well known for innovating novel and robust workhorse phase chemistries, for the analysis of achiral SFC applications. Princeton designs myriad phase chemistries to improve the selectivity and efficiency of SFC analysis. Known for originally innovating the 2-EP phase chemistry, explore what Princeton has to offer. Columns are available from analytical to preparative sizes and are available in a wide range of pore sizes, particle sizes, column ID's and lengths. If you do not see something that you want, please just ask!
Mac-Mod Princeton 4-Ethylpyridine 60 Å, 5 µm, 30 x 10 mm Guard Cartridges (1/pk)
Princeton Chromatography Achiral SFC columns are designed and manufactured in the US, well known for innovating novel and robust workhorse phase chemistries, for the analysis of achiral SFC applications. Princeton designs myriad phase chemistries to improve the selectivity and efficiency of SFC analysis. Known for originally innovating the 2-EP phase chemistry, explore what Princeton has to offer. Columns are available from analytical to preparative sizes and are available in a wide range of pore sizes, particle sizes, column ID's and lengths. If you do not see something that you want, please just ask!
Mac-Mod Princeton HA-Dipyridyl 100 Å, 5 µm, 2.1 x 10 mm Guard Cartridges (5/pk)
Princeton Chromatography Achiral SFC columns are designed and manufactured in the US, well known for innovating novel and robust workhorse phase chemistries, for the analysis of achiral SFC applications. Princeton designs myriad phase chemistries to improve the selectivity and efficiency of SFC analysis. Known for originally innovating the 2-EP phase chemistry, explore what Princeton has to offer. Columns are available from analytical to preparative sizes and are available in a wide range of pore sizes, particle sizes, column ID's and lengths. If you do not see something that you want, please just ask!
Optimize Technologies EXP Guard Column Cartridge, 4.6mm x 5mm, C4, 1.8µm, 3pk
The EXP™ Guard Column cartridge system is rated to 15,000psi with hand-tight replaceable cartridges. This unique design connects directly to any UHPLC column with the auto-adjusting Titanium Hybrid Ferrule and EXP™ Fittings, providing repeated zero-dead-volume connections and easy adjustability between various column types. Free-Turn™ architecture allows the user to change cartridges by hand without breaking fluid connections on the holder inlet/ outlet. The combination of low-dispersion and ultra high-pressure capabilities provides effective protection with negligible effects on retention time, plate count, and peak shape. Use with EXP™ Direct Connect and In-line Holders.