I'm performing an adsorption experiment but I don't know how to use correctly the filter paper or do the calculations to determine the difference of the retained material. Please, help me
Dear Herbert: Send me your email address so that I can send the published answer.as email attachments. The method has to be fast enough for the kinetics.
Donald Gamble. [email protected]
Dear Donald, Thank you very much for replying.
This is my email address:
Dear Herbert. To use correctly filter. It depend on the type of pollutant you use. If it's metal ion, the filter will not influence the concentration but if you are working for example of dye you need to take the absorbance of the solution before and after passing through the filter. The difference will help to know the concentration that is retained during filtration by using the etalon curved you plot with various concentration.
Dear Herbert de Paula Lima,
It is important to first determine if the filter paper will adsorb your targeted pollutant. If not you can use it for the separation of the adsorbent and adsorbate. However, as Mouhamadou Sali has mentioned about taking the absorbance of the pollutants before and after passing through the filter. This may present issues, especially when your adsorbent has nanoparticles as they may leach into the solution and present matrix interference. The type of filter also plays a role so the centrifuge may be appropriate should your adsorbent be able to settle at the bottom of the centrifuge tube. Because other adsorbents with low density take longer to settle.
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