ZAP™ Aerosol Filter Pipette Tips have been proven in studies to block aerosol contamination. Unlike some leading brands of self sealing aerosol resistent pipet tips they have no cellulose gum , toluene solvent, or colored dyes in the filter to mix with and contaminate your sample.
ART self-sealing barrier tips are the only tips that seal completely to prevent liquid samples and aerosols from coming in contact with the pipette nose cone. When the barrier seals it protects the pipette and subsequent samples from cross contamination. Researchers have made ART self-sealing barrier tips their first choice in sample protection.
Certified Sample and Solvent Filtration Products Example 1: 1.5 mL of aqueous sample to be filter for injection on a 5 µm column: Volume Acrodisc Size Hold Up Volume < 2 mL 4 mm < 10 µL < 10 mL 13 mm minispike < 14 µL < 10 mL 13 mm male luer < 30 µL < 100 mL 25 mm < 100 µL Concerned about particulate matter in your sample?
Sample injection Ensure injection-valve materials are compatible with eluent conditions before use. If possible, filter all standards and samples before injection, and ensure that the sample syringe is free of bubbles before sample loading. If possible, use suction to draw sample into loop to avoid contamination or carryover from syringe.
GH Polypro (GHP) Membrane Disc Filters. All purpose, universal membrane with maximum chemical compatibility for both aqueous solutions and aggressive solvents. Specifications. Filter Media Hydrophilic polypropylene Pore Size 0.2 and 0.45 µm Typical Thickness 0.2 µm: 101 µm (4.0 mils) 0.45 µm: 114 µm (4.5 mils) Typical Water Flow Rate mL/min/cm2at 0.7 bar (70 kPa, 10 psi) 0.2 µm: 20 0.45 µm: 31 Maximum Operating Temperature 55 °C (131 °F) Minimum Bubble Point - Water 0.2 µm: 2.9 bar
Polypropylene syringe filters are the optimal choice for analytical sample preparation. Pall’s polypropylene non-sterile syringe filter housing is chemically resistant to harsh solvents, is low in extractables and low in API and biomolecular compound adsorption. Chemical compatibility is a critical consideration when selecting a syringe filter.
Home » News » 0.45um PTFE Filter » solvent compatibility 0.45um syringe filter for healthcare. Product Category 1-4mL Autosampler Vials for HPLC, UPLC, GC . 16mm
Sep 03, 2013 · Typical materials used in modern filters include GHP (polypropylene), PVDF, Nylon, and PTFE membranes providing a wide range of solvent compatibilities. GHP hydrophilic polypropylene (GH Polypro) is ideal for chemical compatibility, fast flow rates, low protein binding, and low levels of UV-absorbing extractables.
The wwPTFE membrane is ideal for sample preparation and solvent filtration. Extend column life up to 52x. Improve result quality with up to 24% less filter extractables and lower adsorption. Use one membrane filter type for all your sample preparation applications. Hydrophilic wwPTFE membrane also available in two LCMS-certified configurations.
A sample loop with a volume of 500 μL is delivered with the ÄKTA™ pure system. The injection valve V9M-J, used in ÄKTA™ pure micro, is optimized for small sample volumes in microliter scale and allows for Sample loops to be filled manually via a syringe. Sample loops with a volume of 10 μL and 50 μL are delivered with the ÄKTA™ pure
solvent, and frequently changing and cleaning the reservoir bottle and sinker frit, contamination problems are reduced. Theprimary concern when choosing a solvent filter is solvent compatibility with the filter material. Pall offers several filters to accomodate the various types of HPLC solvents. Pall’s GHP
1) Syringe filter housings are manufactured from solvent-resistant, low-extractable polypropylene resins specifically selected for wide compatibility with common HPLC sample matrices. 2) Solutions at temperatures up to 100°C can be filtered using syringe filters. 3) Syringe filters can be sterilized by autoclave at 125°C for 15 minutes.
H P L C A N D C H R O M S A M P L E P R E P a p p l i c a t i o n s e l e c t or 168 General HPLC and Chromatography Sample Prep Application Selector Membranes U GH Polypro (GHP) membrane disc filters 176 ••
testing than any other company. Our patented GH Polypro (GHP) membrane, with its uniquely broad solvent compatibility, is globally recognized as the universal membrane for HPLC sample preparation applications. Our diversified portfolio of membranes enables us to select the most appropriate materials and optimize them for each unique application.
tested for compatibility with common HPLC solvents (water, acetonitrile, and methanol) using established HPLC procedures. Filtrate from a statistical sampling of Acrodisc PSF syringe filters was collected and run under gradient mobile phase conditions at three common wavelengths. The chromatograms of the solvent blanks and samples were compared.