HPLC Guard Columns and Cartridges
Waters Corp ACQUITY UPLC CSH Phenyl-Hexyl Pre-column, 2.1 mm X 5 mm, 1.7 μm
ACQUITY CSH Phenyl-Hexyl VanGuard Pre-columns are designed for alternative analyte selectivity in method development, protecting UPLC columns from contaminants while enhancing performance.
- Provides alternative analyte selectivity.
- Uses C6 phenyl ligand for polyaromatic compound retention.
- Features robust, low bleed sorbent.
- Direct connection to UPLC column inlet.
- Minimizes extra column volumes and reduces leaks.
- Protects UPLC columns from damaging contaminants.
- Enhances analytical performance.
- Manufactured under cGMP and ISO 9001.
- Extends analytical column lifetime.
- Maintains UPLC, UHPLC, and HPLC separation efficiency.
- Built with premier materials.
Waters Corp Waters Prep Guard Cartridge, CSH C18, 5 μm
This XSelect CSH C18 Prep Guard Cartridge offers alternative selectivity compared to other C18 sorbents, utilizing Charged Surface Hybrid (CSH) technology to improve peak shape and loading for basic compounds. It provides enhanced column protection by acting as a barrier against contaminants and contains the same packing material as the analytical column.
- C18 chemistry for reversed phase separation.
- Hybrid substrate, 5 μm particle, 130 Å pore.
- Operates across a wide pH range of 1 to 11.
- Withstands maximum pressure of 6000 psi (415 bar).
- Low silanol activity.
- Designed for HPLC preparative, compatible with LC/MS, LC.
- Dimensions: 10 mm inner diameter, 10 mm length.
Trajan Scientific HPLC Reverse Phase Protecol C18 1/EA
C18G x 5 m particle size x 120 pore size 150 mm length x 4 6 mm ID stainless steel with guard ProteCol HPLC column
Waters Corp Waters Sentry Guard Cartridge, Amino (NH2), 10 μm, 3.9 mm X 20 mm
This Sentry Guard Cartridge is designed for methods requiring μBondapak packings, offering reliable performance. It meets stringent quality control standards, ensuring reproducible and high-performance chromatographic results. μBondapak columns are globally recognized and highly referenced.
- Amino (NH2) chemistry
- Normal-phase separation mode
- Silica particle substrate
- pH range of 2 to 8
- Maximum pressure of 6000 psi (415 Bar)
- Not endcapped
- High silanol activity
- Irregular particle shape
- 10 μm particle size
- 125 Å pore size
- 330 surface area
- Designed for HPLC systems
- USP classification L8
- 3.9 mm inner diameter
- 20 mm length
- 4 % carbon load
- Packaged with 2 units per package
Waters Corp Waters Delta-Pak C18 Guard Column, 300Å, 5 μm, 3.9 mm X 20 mm
The Delta-Pak C18 Guard Column features stable, bonded, endcapped spherical silica packing with a 5 μm particle size. Designed for reversed-phase separation in HPLC systems, it supports consistent scale-up for milligram-to-gram purification and is primarily utilized for legacy methods.
- C18 chemistry with spherical silica particles (5 μm).
- 300 Å pore size; low silanol activity; endcapped.
- pH range of 2 to 8; max pressure of 6000 psi (415 Bar).
- Ideal for HPLC systems and legacy method applications.
- Provides consistent scale-up and easy purity checks of fractions.
- Dimensions: 3.9 mm inner diameter, 20 mm length.
- Supplied in a package of 2.
Waters Corp Waters Sentry Guard Cartridge, C8, 4 μm, 3.9 mm x 20 mm
The Nova-Pak C8 Sentry Guard Cartridge utilizes 4 μm particle technology for higher resolution and faster chromatography. It protects analytical HPLC columns by filtering out chemicals and particulates from the mobile stream.
- Utilizes 4 μm particle technology for higher resolution and more efficient separations.
- Protects analytical HPLC columns from damage by filtering out chemicals and particulates.
- Operates effectively across a 2 to 8 pH range.
- Manufactured under stringent conditions for batch-to-batch consistency.
- Allows for faster chromatography, enabling the use of shorter columns to decrease solvent usage or longer columns for complex mixtures.
- Maximum pressure: 6000 psi (415 Bar).
- Endcapped: Yes.
- Particle shape: Spherical.
- Units per package: 2.
Waters Corp Waters Guard Column, C4, 5 μm, 100 Å, 3.9 mm × 20 mm
Waters Guard Column, C4, 5 μm, 100 Å, 3.9 mm × 20 mm
Waters Corporation Guard Column, C18, 90Å Pore, 5 μm Particle
The non-encapped Resolve C18 column offers significantly different selectivity compared to similar HPLC packings like Nova-Pak and μBondapak. The change in chromatographic behavior is most commonly noticed with polar compounds, which are typically more retained.
- Chemistry: C18
- Separation mode: Reversed phase
- Particle substrate: Silica
- PH range: 2 to 8 pH
- Maximum pressure: 6000 psi (415 Bar)
- Endcapped: No
- Silanol activity: High
- Particle shape: Spherical
- Particle size: 5 μm
- Pore size: 90 Å
- Format: Guard column
- Surface area: 200
- System: HPLC
- USP classification: L1
- Inner diameter: 3.9 mm
- Length: 20 mm
- Carbon load: 10%
- Units per package: 2
Waters Corp Waters Sentry Guard Cartridge, C18, 130Å, 3.5 μm, 4.6 mm × 20 mm
The XBridge BEH C18 sorbent serves as a workhorse for HPLC method development, offering utility across the entire mobile phase pH range of 1-12. Its trifunctionally bonded C18 ligand provides a universal column suitable for most HPLC separations. This design ensures the widest usable pH range, superior stability at low pH, and ultra-low column bleed.
- Chemistry: C18
- Separation mode: Reversed phase
- Particle substrate: Hybrid
- pH range: 1 to 12
- Maximum pressure: 6000 psi (415 bar)
- Endcapped: Yes
- Silanol activity: Low
- Particle shape: Spherical
- Particle size: 3.5 μm
- Pore size: 130 Å
- Format: Sentry guard cartridge
- Surface area: 185
- System: HPLC
- Particle technology: BEH
- USP classification: L1
- Inner diameter: 4.6 mm
- Length: 20 mm
- Carbon load: 18%
- Units per package: 2 pk
Waters Corp XBridge BEH C8 Sentry Guard Cartridge, 130Å, 3.5 µm, 3 mm X 20 mm, 2/pk
The XBridge BEH C8 sorbent is less retentive compared to the XBridge BEH C18 sorbent. Anyone developing methods may prefer the speed offered by a less retentive column, while improving peak shape and chromatographic performance. The trifunctionally bonded sorbent offers you the widest usable pH range (1-12), superior low pH stability, and ultra-low column bleed.
Waters Corporation Sentry Guard Cartridge, C8, 3.5 μm, 100 Å, 4.6 mm X 20 mm
SunFire C8 columns are used for general purpose method development at low pH. The C8 ligand is preferred for some assays because it is less hydrophobic and therefore less retentive compared to SunFire C18.
- C8 chemistry
- Reversed phase separation mode
- Silica particle substrate
- pH range of 2 to 8
- Maximum pressure of 6000 psi (415 bar)
- Endcapped
- Low silanol activity
- Spherical particle shape
- 3.5 μm particle size
- 100 Å pore size
- Sentry guard cartridge format
- 340 surface area
- HPLC system compatibility
- L7 USP classification
- 4.6 mm inner diameter
- 20 mm length
- 12% carbon load
- 2 units per package
Waters Corp Symmetry C18 Sentry Guard Cartridge, 300Å, 5 µm, 3.9 mm X 20 mm, 2/pk
Symmetry columns continues to set the standard for HPLC drug assays, giving you confidence in the long-term compliance of your HPLC methods. No need to compromise on peak shape, selectivity, column-to-column and batch-to-batch reproducibility, or other critical performance characteristics. Available in a variety of particle sizes, chemistries and dimensions.
Waters Corp Waters SunFire C18 Sentry Guard Cartridge, 3.5 μm, 100 Å
Waters SunFire C18 Sentry Guard Cartridge, 3.5 μm, 100 Å