HPLC Guard Columns and Cartridges
MilliporeSigma™ Supelco™ LiChrospher™ RP-18 HPLC Guard Cartridge, 5 μm Particle Size
Use guard cartridge holder 54987
MilliporeSigma™ Supelco™ Zenix™ SEC-300 Gel Filtration Guard Column, 3 μm Particle Size, Stainless Steel
Like their 5 micron siblings, 3 micron Zenix™ SEC columns feature a hydrophilic surface layer to prevent the sample from interacting with the underlying silica.
TSKgel™ SuperSW Guard Column, 4 μm Particle Size, Sold by MilliporeSigma™ Supelco™
TSKgel Guard Columns are stand-alone and do not require separate holders. For use with 4.6 mm ID TSKgel SuperSW2000 & SuperSW3000 Columns.
MilliporeSigma™ Supelco™ Ascentis™ Express Phenyl-Hexyl Guard Cartridge, 2 μm Particle Size
Ascentis™ Express Guard Columns provide physical (filtration) and chemical protection for costly analytical columns without compromising the very high performance of Ascentis™ Express columns.
Thermo Scientific™ Hypersil GOLD™ Javelin™ Guard Columns
Offer convenient, easy to use protection for analytical HPLC columns
MilliporeSigma™ Supelco™ Discovery™ BIO Wide Pore C5 Supelguard™ Cartridge, 5 μm Particle Size
Kits include one cartridge, a stand-alone holder, a piece of tubing, and 2 nuts and ferrules. Guard cartridges require holders that are sold separately. The 2.1 and 4 mm I.D. cartridges use 21150AST or 59660-U (both stand-alone) or 504254 or 55205 (both integral). The 10 mm I.D. cartridges use 567499-U. The 21.2 mm I.D. cartridges use 581392-U.
TSKgel™ SuperMPHZ-N Guard Column, 3 μm Particle Size, Sold by MilliporeSigma™ Supelco™
Tosoh′s innovative multi-pore technology is now also available in 3, 4 and 6 μm TSKgel™ SuperMultiporeHZ Columns and Guard Columns.
TSKgel™ ODS-80Ts Guard Column, 10 μm Particle Size, Sold by MilliporeSigma™ Supelco™
Guard Column for use with 21.5 mm ID TSKgel ODS-80Ts Columns.
Thermo Scientific™ Hypersil Drop-In Guard Cartridges —C18, C8, C1, Silica
Convenient, economical, and effective protection for extending column lifetimes
Thermo Scientific™ Hypercarb™ Porous Graphitic Carbon HPLC Columns
Use for enhanced retention of polar compounds and separation of structurally related analytes with stability at pH extremes and high temperature.
MilliporeSigma™ Supelco™ SUPELCOSIL™ LC-Si Supelguard Cartridge Kit, 5 μm Particle Size
A typical mobile phase used with normal-phase silica columns consists of a hydrocarbon solvent such as hexane or heptane, mixed with a relatively small percentage of more polar solvent.
MilliporeSigma™ Supelco™ SUPELCOSIL™ LC-DP Supelguard Cartridge, 5 μm Particle Size
Contains a diphenyl bonded phase, which gives greater selectivity for aromatic groups compared to alkyl-type bonded phases.
MilliporeSigma™ Supelco™ SUPELCOSIL™ LC-1 Supelguard Cartridge, 5 μm Particle Size
Due to a mixed retention mechanism, selectivity differences for polar groups are more pronounced than on C8 and C18 columns. C1 columns require 20-30% less organic modifier to provide retention similar to C18 columns.
Thermo Scientific™ Hypersil™ BDS C18 Javelin Guard Columns
Offer convenient, easy-to-use protection for analytical HPLC columns
MilliporeSigma™ Supelco™ Proteomix™ WAX-NP5 Weak Anion Exchange Guard Cartridge and Holder, 5 μm Particle Size, Stainless Steel
Used for the analysis or small scale purification of positively charged biopolymers including glycoprotein isoforms and mAb variants.