Bond elut™ Accessories
Varian Syringe Filters: Improve Sample Integrity With the Widest Range of Filter Membranes
• Particulate removal reduces clogging and downtime • Improved sample integrity delivers clearer data • Variety of filter membranes offers application selectivity A wide variety of disposable single-use syringe filters is available for applications requiring the highest quality membrane-based devices. These tips are compatible with all Luer slip syringe devices and are available in a range of diameters, porosities and membrane chemistries. Hydrophilic membranes Nylon: This material has a base hydrophilicity due to its polyamide structure. Nylon exhibits high levels of protein binding, high mechanical stability and can be loaded with a high level of particulate. This type of device is often used for samples that are directly injected into HPLC sample loops. Regenerated cellulose (RC): Hydrophilic, solvent resistant membrane. RC is a very low protein binder and is ideal for the filtration of samples containing biomolecules such as enzymes, proteins and peptides. Polyvinylidene difluoride (PVDF): A hydrophilic membrane suitable for most general-purpose applications. PVDF is a low protein binder with a broad chemical and solvent compatibility. Hydrophobic membranes PTFE (Teflon®): Hydrophobic, low protein binding, recommended for HPLC solvents or GC filtration. Can be used with aggressive solvents but requires pre-wetting when used with aqueous samples. Glass fiber pre-filters are recommended when samples have high particulate matter to reduce filter bed clogging.
Syringe Filters Diameter (mm) 4 Filter Type Nylon Nylon PTFE PTFE PVDF RC Nylon Nylon PTFE PTFE PVDF RC RC Nylon Nylon Nylon PTFE PTFE PTFE PTFE PTFE PVDF PVDF RC RC Pre-filter None None None None None None None None None None None None None None None None Quantity (/pk) 100 100 100 100 100 100 200 200 200 100 200 200 200 100 100 500 Pore Size (μm) 0.20 0.45 0.20 0.45 0.45 0.20 0.20 0.45 0.20 0.45 0.45 0.20 0.45 0.20 0.45 0.45 0.20 0.45 0.20 0.45 0.45 0.45 0.45 0.20 0.45 Part No. A4101 A4100 A4103 A4102 A4136 A4140 A4131 A4130 A4135 A4170 A4137 A4142 A4143 A4105 A4104 A4132 CP201950 CP201951 A4107 A4106 A4134 CP201955 A4138 A4145 A4144
Glass fiber 100 Glass fiber 100 None None None None None None 100 100 500 100 100 100
Glass fiber 100
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