Products
Caps and Closures. Laboratory caps and closures provide a secure and air-tight seal for cups, vials, test tubes and other labware to keep samples contaminant-free. Our laboratory closures fit containers snugly and will not crack or leak. The container contents will be temperature-resistant and secure for transportation.
For fast gradient conditions, flow rates on the Onyx 2.0 mm ID can be increased during re-equilibration without backpressure constraints, significantly reducing overall sample cycle times. The increased speed makes the columns ideal for high-throughput applications. Onyx columns are also available in 3, 4.6 and 10 mm diameters.
Aug 13, 2018 · The gradient program was as follows: 0 min, 25% B; 5 min, 17% B; 10 min, 17% B. The injection volume was 10 μL and the column eluent was monitored at UV 200 nm while chromatography was performed at 30 °C with a flowrate of 1.0 mL/min. The HPLC pattern of allantoin in yam water extract has been reported in the literature [9,26].
Pall AP-4910 Acrodisc One PSF Syringe Filter with wwPTFE Membrane - 0.2 µm Pore Size, 25 mm Diameter, (200/pkg) These 25 mm syringe filters are ideal for HPLC and UHPLC automated sample processing and sample clarification
Apr 02, 2018 · To prepare the diluted samples for LC-MS, for each sample, draw the full sample volume into a clean syringe. Remove the syringe needle and replace it with a 4-mm, 0.20-μm pore size syringe filter. Express the sample through the filter into a fresh, labeled HPLC vial. Cap the vial. Discard the syringe filter and replace it with the syringe.
Top 10 Reasons to Use Restek Syringe Filters Group of Substance & Chemical Reagents Cellulose Acetate Nylon PES PTFE PVDF ACIDS Acetic, 5% L R R R R Acetic, 10% L R R R R Acetic, 25% N L R R R Acetic, Glacial N N R R R Boric - L - R - Formic 25% L N - R - Hydrochloric 15% L L R R L Hydrochloric 25% N N R R - Hydrochloric concentrated N N L R N
Nov 16, 2020 · In fact, plugging of the HPLC column by particulate matter is the most frequent cause for column failure encountered by analysts. Sample filtration using syringe filters with 0.45 μm (HPLC) or 0.2 μm (UHPLC) pore size membrane, is a time effective and easy to implement method to protect the column.
10 mm Pre-Assembled Black Polypropylene Screw Cap All our caps and septa are packed in a clean environment to ensure you receive contaminant free product every time. Vial Top Type Neck I.D. Size Cap Type Septa Material Septa Type Quantity Screw Top 10 mm Black Polypropylene Cap PTFE/Silicone Pre-Slit
Sepax Technologies Inc. based in Newark, DELAWARE (USA) Headquartered in Delaware USA, Sepax Technologies, Inc. is a privately held company founded in November 2002. Sepax focuses on customers’ needs and provides solutions to customer’s challenges in chromatographic separation science.
Contains 1 solvent line filter holder, 1 stainless steel solvent line filter frit (Porosity: 10 µm), 1 silicone tubing (2.8 mm od x 1.3 mm id x 1.5 m), 1 PharMed tubing for peristaltic pump (3.2 mm od x 1.6 mm id x 180 mm), 3 tube connectors for 1.0-2.0 mm id tubing, 4 piston seals (reversed-phase), 2 support rings, 1 PTFE O-ring seal for seal
Aug 09, 2021 · 10 Best 0.22 Um Filter Paper: Editor Recommended. Simsii Nylon Membrane Filter, Diameter 47 mm, Pore Size 0.22 µm, Pack of Simsii Syringe Filter, Nylon Filtration Medium, Non Sterile Membrane Lab... Simsii Syringe Filter, Hydrophobic PTFE Membrane Disc, Diameter 25 mm,... Eisco Labs Premium Qualitative Filter Paper, 9cm Dia, Medium Speed (85...
4. 13 mm x 5 µm PTFE filters and stainless steel filter holder to protect the LC column. 5. Vials, 20-mL, glass, PTFE-lined screw caps. 6. Syringe, 1-mL, with Luer-Lok fitting. 7. Pipets, 10-mL, with pipet bulb. 8. Tweezers. 9. Volumetric flasks, 10-mL. SPECIAL PRECAUTIONS: Acetonitrile is toxic and flammable; work with it only in a hood.
Feb 07, 2020 · Mobile phase consisted of 10 mM ammonium bicarbonate buffer pH 10.77 (A):methanol (B) (20:80, v/v) under isocratic elution and a flow rate of 0.2 mL min −1 was employed. Mobile phases A (see
Nov 15, 2018 · Membrane filters (47 mm × 0.45 μm) and syringe filters (13 mm × 0.2 μm) were obtained from Millipore (U.S.). HPLC analysis of AFB1 Extraction of AFB1 from liquid culture media