2. Trifluoroacetic or acetic acid (0.1-0.2%) with acidic analytes. 3. Mixtures of basic and acidic mobile phase additives are acceptable (ie. diethylamine acetate or trifluoroacetate). Column Storage It is very important to make sure that your column is clean before storage. This includes removal of buffer, salts, sample and ion-pairing agents.
Jun 27, 2021 · Na (2.3 – 5.3 mg/L), and Mn (0.2 – 2.5 mg/L) (Figure 2). The concentrations of these minerals were not significantly different among the batches, except for the
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Jun 01, 2020 · The column was a Kinetex C18 (2.6 μm, 150 × 21 mm, Phenomenex). The sample was prepared in methanol and water (7:3, v/v), filtered on PTFE syringe filter (0.22 μm, Millipore) and 1 μL was injected on the system. The mobile phase was composed by acetonitrile (B) and water (A) both acidified with formic acid 0.1% (v/v).
What membrane filter pore size should I use for sterilization? Regardless of the membrane filter material, always use a 0.2 µm pore size membrane filter as the final filter for any sterilizing filtration. The 0.2 µm membranes used in Thermo Scientific™ Nalgene™ filters have been tested and shown to retain 100% of a challenge of 1 X 107
Syringe Filters. Syringe filters with high burst strength for assured performance. Manufactured to ISO 9002 and GMP standard and 100% integrity tested. Syringe filter sizes include 4, 15, 25, or 26 mm diameter to handle volumes ranging from 0.5 to 100 ml. The 50 mm diameter "PTFE" syringe filter are ideal for protecting the vacuum line and pump.
dramatically degrade column life. Filter all samples using a 0.45 µm or 0.2 µm porosity filter prior to injection. Matrix Cleanup Utilize sample preparation techniques such as solid phase extraction (Strata-X SPE products) or accessories (Phenex™ Syringe Filters) to minimize the injection of unwanted contaminants onto your system and column.
Phenex Syringe Filters 22-24 Membrane Filters Order List Guide 22-23 Phenex Disposable Centrifugal Filter Units 24 SecurityGuard Guard Cartridge System 25-29 HPLC System Test Kit 30 Column Performance Check Standards 30-33 PART XII - SOLID PHASE EXTRACTION (SPE) 34 PART XIII - HPLC ACCESSORIES 35 PHENOMENEX WARRANTY 36 COLUMN PERFORMANCE RECORD 37
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Membrane filters serve as effective physical barriers that remove solids, viruses, bacteria, and other unwanted molecules. Specialized types are designed for softening, disinfecting, organic removal processing, and water desalination. The filters can be installed in compact, automated, or modular units. These strainers can be used as separators
0.2 mL/min (2.1 mm ID) or 1.0 mL/min (4.6 mm ID) for 5-10 minutes. Collect solvent in a small beaker. Stop flow and wipe outlet end of column to remove any particulates before connecting to detector. Install fitting/tubing into outlet end and run minimum 10 column volumes at low flow (~0.2 mL/min) while monitoring the backpressure. 1.
AF0-0440 0.2 2.0 / 5.0 PTFE 25/pk AF0-0441 0.45 2.0 / 5.0 PTFE 25/pk AF0-8353 0.2 2.0 / 5.0 CA 25/pk AF0-8354 0.45 2.0 / 5.0 CA 25/pk DISPOSABLE SYRINGES / STERILE SYRINGE FILTERS / CENTRIFUGAL FILTERS | FILTRATION - SAMPLE HANDLING Sterile Syringe Filters Sterile syringe filters from Phenomenex are ready-to-use, individually
Laboratory Syringe Filters. Improve signal-to-noise ratios, maintain clean baselines, and maximize instrument uptime with high quality, trusted syringe filters. Our syringe filters are offered in a variety of membrane materials, pore sizes, diameters, and housing materials for sensitive instrumental analyses including gas, liquid, and ion
mineral dispersion tests, 4.5 μl of the sample was placed on a slide, and 0.5 μl of 100 uM Rhodamine 6 G was added to the sample and mixed prior to microscopic examination. Estimation of critical aggregate concentration Fatty acid micelles were added to a buffered solution (final concentration of 0.2 M sodium
Polypropylene, nylon, and PTFE membranes are ideal for sample preparation and small volume chemical filtration.Syringe filters are attached to the end of a syringe to remove particles from a sample prior to analysis. Filtering liquids, the single-use devices force liquids through the filter either when fluids are initially drawn or delivered. Circular shaped in diameters that fit common
