HPLC Guard Columns and Cartridges
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
YMC America, Inc HS C18 grd 120A 3um 20x3mm
Hydrosphere C18 is based on highly inert ultra-pure pH neutral silica and is designed to maintain a hydrophilic surface for superior separation of hydrophilic compounds Minimal metal content and very low concentrations of residual silanols make this an ideal phase for the analysis of basic pharmaceuticals and chelating compounds even under LC-MS conditions such as separation in non-phosphate buffered systems In addition the ability to separate polar compounds under highly aqueous mobile phase conditions without loss in retention plate counts and peak performance greatly enhances the versatility of Hydrosphere C18
YMC America, Inc CN guard 300A 5um 10x3mm
YMC-Pack CN can be used for both normal phase and reversed phase analyses due to the medium polarity of the cyanopropyl phase bonded to the silica base particle It can be used in normal phase with low-polarity mobile phases such as hexane or in reversed phase with highly-polar mobile phases such as methanol and water YMC-Pack CN can be useful for shortening analysis time in situations where retention is substantial using C18 or C8 or when separation optimization is difficult
YMC America, Inc CN guard 300A 5um 20x3mm
YMC-Pack CN can be used for both normal phase and reversed phase analyses due to the medium polarity of the cyanopropyl phase bonded to the silica base particle It can be used in normal phase with low-polarity mobile phases such as hexane or in reversed phase with highly-polar mobile phases such as methanol and water YMC-Pack CN can be useful for shortening analysis time in situations where retention is substantial using C18 or C8 or when separation optimization is difficult
YMC America, Inc C4-HG guard 200A 10um 20x4mm
YMC-Pack C4 is ideal for analyzing mixtures with a wide range of component polarity This is due to the C4 bonded phase exhibiting shorter analysis time while still maintaining high resolution when compared to longer-chain bonded chemistries YMC-Pack C4 (Butyl) columns are available with three pore sizes to accommodate optimum separations of virtually any molecular-weight compound The 120 phase is used extensively with non-polar peptides which are too strongly retained on C8 and C18 The 200 and 300 phase columns effectively resolve many classes of proteins and biopolymers
YMC America, Inc ProC18 guard 120A 10um 10x4mm
YMC-Pack Pro C18 columns start with a tightly controlled highly purified silica gel followed by a high-coverage C18 bonding and finished with a unique endcapping procedure utilizing Lewis acid/Lewis base chemistry Together these features provide unequaled separations with sharp and symmetrical peaks for all types of organic molecules especially basic pharmaceuticals and chelating compounds
YMC America, Inc C8-HG guard 120A 10um 10x5mm
YMC-Pack C8 columns are prepared using exhaustive bonding of a monomeric octylsilane to totally porous and spherical silica gels The functionalized silica is then treated with an endcapping process which produces a moderate 10% carbon loading on the standard 120 pore material Available in three pore sizes YMC-Pack C8 columns will separate many classes of compounds including pharmaceuticals organic chemicals and biologics
Waters Corp Atlantis T3 VanGuard Cartridge, 100Å, 3 µm, 3.9 mm X 5 mm, 3/pk
Atlantis T3 VanGuard Cartridges are used to extend analytical column lifetime and performance by removing particulate contamination from the mobile phase stream. This cartridge is optimized to protect all 3.9 mm and 4.6 mm I.D. Atlantis T3 analytical columns containing 3 µm sorbent particles.
Optimize Technologies OPTI-LYNX™ Guard Column Cartridge, 3mm x 15mm, C8
OPTI-LYNX Guard Column Cartridge, 3mm x 15mm, C8