HPLC Guard Columns and Cartridges
Waters Corp Envirogel GPC Cleanup Guard Column, 15 µm, 4.6 mm X 30 mm, 100 - 10K, Methylene Chloride , 1/pk
The Envirogel High-Resolution GPC cleanup columns are specifically designed to remove low volatility, high molecular weight interferences such as lipids and natural resins from environmental samples as specified in EPA method 3640A. In the past, the cleanup procedure for environmental samples was performed on low-efficiency GPC columns based on packing particle diameters of 37-75 micron (200-400 mesh) Biobeads S-X resins. The high-efficiency Envirogel Cleanup columns increase the speed of this process while simultaneously reducing solvent consumption. They come packed in your choice of Methylene Chloride or a mixture of Cyclohexane/Ethyl acetate to minimize the need for risky solvent switchover.
Tosoh Bioscience LLC TSKgel UP-SW Aggregate DC Guard Column for 4.6 mm ID column, 3 um, 2 cm L
TSKgel UP-SW Aggregate DC Guard Column for 4.6 mm ID column can be directly connected to the TSKgel UP-SW Aggregate analytical column without tubing between the two columns. A male-type outlet endfitting on the guard column enables the direct connection to the screw-type endfitting of the analytical column.
Advanced Materials Technology HALO 1000 Å OLIGO C18, 2.7 µm, 2.1 mm x 5 mm, Guard Column 3pk
HALO BIOCLASS Oligonucleotide columns are designed with the foundational properties of Fused-Core technology for high efficiency, high speed separations and optimized for the needs of oligonucleotide separations. The HALO 1000 Å OLIGO C18 columns deliver superior separation and impurity profiling for longchain oligonucleotides, (up to and beyond 100 nucleotides) with higher peak capacity and lower backpressure. Ideal for advanced applications like CRISPR and therapeutic development. Their robust design supports high pH and temperature conditions, scalable column lengths, andreliable performance for advanced applications The inert column hardware also addresses absorptivity concerns so the highest recoveries can be achieved.
Waters Corp µPorasil Silica Guard Column, 125Å, 10 µm, 3.9 mm X 20 mm, 2/pk
Waters µPorasil 10µm silica packing material provides high-efficiency and low backpressure.
Sepax Technologies Inc Sepax HPLC Column Bio-C4, Guard cartridge with holder, 3 µm, 300 Å, 2 x 10 mm
Monomeric and fully endcapped Bio-C4 packing is bonded with butyl groups that lead to moderate hydrophobicity. Bio-C4 packings of 300 Å pore size selection are ideal for high resolution mapping of peptides and separation of intact proteins, and natural and synthetic peptides.
Optimize Technologies EXP™ Guard Column Cartridge, 3.0mm x 5mm, C8, 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.
Sepax Technologies Inc Sepax HPLC Column GP-C18, Guard cartridge with holder, 3 µm, 120 Å, 4 x 10 mm
GP-C18 uses full coverage bonded silica packing, which provides exceptionally high stability. The unique mono-functional bonding chemistry of GP-C18 avoids the formation of multiple C18 layers. Such uniform stationary phase allows the separation to achieve high selectivity and high efficiency.
Sepax Technologies Inc Sepax HPLC Column HPLC Guard Column, SRT SEC-1000, 5 µm, 7.8 x 50 mm, Light Scattering SEC
Utilizing proprietary surface technologies, SRT SEC phases are made of the uniform, hydrophilic, and neutral nanometer thick films chemically bonded on the high purity and enhanced mechanical stability silica. This proprietary surface technology results in excellent column-to-column reproducibility. The nature of the chemical bonding and the maximum bonding density of the thin film benefit SRT SEC phases with high stability and negligible non-specific interactions. Along with the widest pore size selection of 100, 150, 300, 500, 750, 1000 and 2000Å, SRT SEC packings have highest capacity that enables highest resolution.
Sepax Technologies Inc Sepax HPLC Column HPLC Guard Column, SRT-C SEC-2000, 5 µm, 4.6 x 50 mm, Light Scattering SEC
SRT-C SEC phase, developed based on innovative surface coating technology, comprises of uniform, hydrophilic, and neutral nanometer thick film chemically bonded to high purity and mechanically stabilized silica. SRT-C, uses lay-down monolayer on porous silica as oppose to SRT of stand-up monolayer, offers ideal phase chemistry for hydrophobic samples like insulin, membrane protein monoclonal antibodies derivatized with polymer branches (polypeptide or PEG) separation.
