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Nov 15, 2014 · The choice of syringe filter depends on the: filter size (volume) of your sample, the chemical compatibility of the housing and membrane and desired pore size.Selection of the wrong filter size can result in too much sample holdup volume (loss of sample on filter) or overloading of the filter (allowing unfiltered material to pass through).
11/6/2021 · Step-by-step Procedures. Collect the sample and make any necessary dilutions. Select the appropriate nutrient or culture medium. Dispense the broth into a sterile Petri dish, evenly saturating the absorbent pad. Flame the forceps, and remove the membrane from the sterile package. Place the membrane filter into the funnel assembly.
Step 4: Choose the best filter design for your application. Corning offers three basic filter types: positive pressure-driven syringe and disc filters, Spin-X ® centrifuge tube filters driven by centrifugation, and vacuum-driven filters. The vacuum-driven filters offer several different designs and styles in disposable plastic products.
Jun 11, 2018 · Step Four- Select the Right Filter Design for Application The disc type filters are ideal for syringes that serve as a pressure source and fluid reservoir. You need to look for HPLC-certified non-sterile syringe filters with Polypropylene housing that has good chemical resistance. Step Five- Pay Attention to the Fluid Temperature of the Sample
sample from the syringe (Step 5 below). 2. Select the correct syringe filter per this guide (Refer to page 8). 3. Twist the luer lock end of the filter securely onto the syringe. (Caution: Do not use syringes without a matching luer lock, otherwise the pressure applied may cause the filter to come off unexpectedly). 4.
Syringe filters for aqueous solutions are available in diameters of: 4mm, 13mm, 17mm, 20mm, 25mm, 30mm, and 33mm . Here’s a guide to help you choose your syringe filter size: 4 mm filters – for small volume samples less than 1 ml. 13 mm filters – for sample volumes between 1 and 10 ml. 17 mm filters – for sample volumes greater than 10 ml.
Captiva Premium Syringe Filters Premium Syringe Filters Membrane Diameter / Pore size 4 mm 15 mm 25 mm (* 28 mm) 0.2 µm 0.45 µm 0.2 µm 0.45 µm 0.2 µm 0.45 µm PTFE ♦ ♦ ♦ ♦ ♦ ♦ Nylon ♦ ♦ ♦ ♦ PES ♦ ♦ ♦ ♦ ♦ ♦ Regenerated Cellulose ♦ ♦ ♦ ♦ ♦ ♦ Cellulose Acetate ♦ ♦
GD/XP syringe filters contain a two layer prefilter stack comprised of 20 µm and 5 µm polypropylene filters. The last stage of filtration is a choice of membrane, which is positioned below the prefilter stack. Applications • HPLC sample preparation • Trace metal analysis FOR ORDERING INFORMATION SEE BELOW GD/XP™ SYRINGE FILTERS
Materials used: and PP PTFE. Flexible modular system. Four different tubing diameters (1.6 mm; 3.0 mm; 3.2 mm and 6.0 mm) can be connected. Sterile pressure equalisation is possible through use of syringe filter. Unused ports can be sealed off with a red GL
Step 4-Choose a suitable filter design for the application The disc filter is very suitable for use as a pressure source and as a syringe for liquid storage tanks. You need to use an HPLC certified non-sterile syringe filter with a polypropylene housing with good chemical resistance. Step 5-Pay attention to the fluid temperature of the sample
Uniflo and Puradisc Syringe Filters 4 mm diameter* 13 mm diameter† 25 mm diameter‡ 30 mm diameter* Housing Polypropylene Polypropylene Polypropylene Polycarbonate Filtration area 0.2 cm2 1.3 cm 24.2 cm 5.7 cm2 Maximum pressure 75 psi (5.2 bar) 75 psi (5.2 bar) 75 psi (5.2 bar) 100 psi (6.9 bar)
Polypropylene (PP) is used in the Spin-X® centrifuge filters and some of the syringe and disc filter housings. This plastic polymer has very good resistance to many solvents, refer to Table 3 for more chemical compatibility information.
Dec 07, 2020 · Our syringe filters are economical and designed to be single-use for your convenience and for laboratory efficiency. When choosing a syringe filter, three main factors dictate your syringe filter selection: sample volume, potential particulate size, and filter membrane compatibility. Diameter of the Syringe Filter and Sample Volume
View Nylon Membrane Filters View Nylon Syringe Filters. Polypropylene (PP) Polypropylene membranes are a hydrophobic membrane that exhibit a wide range of chemical compatibility to organic solvents. PP membranes are a good choice for filtration of HPLC samples when performing protein analysis by chromatography.
Syringe filter How to select your syringe filter Step 1. Membrane selection It’s important to use the correct filter for your sample as different membrane types will give different results. Most important it is necessary to ensure that the filter does not interface or bind with the sample and that the solvent