HPLC Guard Columns and Cartridges
Waters Corp Symmetry Shield RP8 Sentry Guard Cartridge, 100Å, 3.5 µm, 2.1 mm X 10 mm, 2/pk
These reversed-phase columns contain Waters patented embedded polar group technology that “shields” the silica’ residual silanol surface from highly basic analytes. The reduced silanol activity for the SymmetryShield RP8 column significantly improves peak shape and resolution.
Waters Corp XTerra MS C18 Sentry Guard Cartridge, 125Å, 5 µm, 3.9 mm X 20 mm, 2/pk
XTerra MS C18 columns are general purpose, hybrid-based, reversed-phase C18 columns that are designed to be compatible with mass spectrometry applications. These first generation columns provide superior pH stability compared to a silica-based column.
Optimize Technologies OPTI-LYNX™ Guard Column Cartridge, 3mm x 15mm, Amino (NH2), 5pk
OPTI-LYNX Guard Column Cartridge, 3mm x 15mm, Amino (NH2), 5/Pk
Advanced Materials Technology HALO 90 Å PCS Phenyl-Hexyl, 2.7um, 3.0 mm x 50 mm
Built upon proven Fused-Core technology for speed and efficiency, the HALO PCS column products are positively charged surface chemistries designed to deliver improved peak shapes for basic compounds observed with standard Phenyl-Hexyl chemistry. Ideal for use with low ionic strength mobile phases, HALO PCS maintains peak symmetry at higher loading capacities and provides alternate selectivities from Phenyl-Hexyl bonded phases. The columns are optimized to deliver performance for reproducible, high efficiency LC and LCMS separations.