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18/6/2014 · After agitating samples for 24 hours, an aliquot of 2 mL (adipose and liver samples) or 2–4 mL (blood and skin) of the extractant was filtered through a 0.45 µm PTFE syringe filter and concentrated to 1 mL using a nitrogen evaporator (adipose and liver samples, N
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Description: free of particles. Each envelope is checked for readable lettering.The membranes are made of even cellulose nitrate ( cellulose ester), a material which assures effective retention with high flow rates and optimum colony growth or cellulose acetate, a material which. Configuration: Filter
After centrifugation and filtration through a 0.2 μm PTFE syringe filter the concentration of Ca 2+ in the aqueous phase was determined via ICP-OES. Asymmetric flow field-flow fraction AF4 measurements were performed on a Eclipse 3 system (Wyatt) with a regenerated cellulose membrane (10 kDa cutoff) and a channel height of 350 μm using water with 0.2% sodium azide and 50 mmol L −1 NaNO 3 as
The three collected phases were dried with anhydrous Na 2 SO 4 and filtered again with Whatman 4 filter paper. The resulting sample was rotary evaporated to dryness at 35 °C, dissolved in 3 mL of a H 2 O/MeOH (50:50 v/v) solution and filtered with a 0.20 μm PTFE syringe filter.
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Syringe-deposited calibration compounds form patches of material when the solvent evaporates, whereas collected aerosol particles stay as separate particles on the filter. The atomized particles have much higher surface-to-volume ratio compared to the syringe-deposited patches and so a similar total amount of deposit will evaporate more quickly from the filter.
1,661 ptfe air conditioning filter products are offered for sale by suppliers on Alibaba.com, of which air filter accounts for 2%, other industrial filtration equipment accounts for 1%. A wide variety of ptfe air conditioning filter options are available to you, such as not available, 3 months, and 2 years.
(v/v), filtered through 0.22 µm PTFE syringe filters (ALBET LabScience) and analyzed by HPLC. Extraction of toxins from dried biomass was performed by ultrasonification of 40 to 60 mg biomass in 1 ml of 50% methanol (v/v). After centrifugation the methanolic
Foxx Life Sciences 385-2116-OEM Hydrophobic PTFE EZFlow Syringe Filter Sample Prep, 13 mm Diameter.2 µm Pore Size (Pack of 100) $118.85 Foxx Life Sciences 388-3216-OEM Hydrophilic PVDF EZFlow Syringe Filter Sample Prep, 25 mm Diameter.45 µm Pore Size (Pack of 100)