Filter Paper for General Laboratory with 80gsm
Filter paper is a laboratory staple due to its ability to separate mixtures. In chemistry, it's used for gravimetric analysis (separating precipitates) and purifying solutions. Biologists, few of the times, use it to sterilize culture media and isolate cells. Environmental scientists filter water samples and collect air particles. In medicine, it helps analyze blood and urine, and even sterilize solutions. To use filter paper, place it in a funnel and pour the mixture through. The filtrate (liquid) passes through, while the residue (solids) is trapped on the paper.
Filter paper is a workhorse in the scientific world, serving multiple purposes due to its high porosity, surface area, absorbency, and strength. Here's a breakdown of its uses and how to employ it:
How to Use Filter Paper:
Folding (Optional): For faster filtration, some techniques involve folding the filter paper into a cone shape. However, this isn't always necessary.
Placement: Place the filter paper in a funnel secured on a filter flask or collection container.
Wetting (Optional): In some cases, wetting the filter paper with a small amount of the solvent you're filtering can improve flow rate and establish a seal.
Pouring the Mixture: Slowly pour the liquid mixture you want to filter onto the filter paper. The filtrate (clear liquid) will collect in the flask below, while the residue (solid particles) remains on the filter paper.
Disposal: Dispose of the filter paper and residue according to your specific experiment and safety protocols.
Applications of Filter Paper Across Scientific Disciplines:
Chemistry:
- Gravimetric Analysis: Separating precipitates from solutions to determine the mass of a specific compound.
- Filtration of Samples: Filtering solutions to remove impurities before analysis techniques like chromatography or spectroscopy.
Biology:
- Cell Culture: Sterilizing culture media and separating cells from culture broth.
- Protein Assays: Separating unbound reagents from bound proteins in assays.
Environmental Science:
- Water Quality Analysis: Filtering water samples to analyze suspended particles or microorganisms.
- Air Quality Monitoring: Collecting airborne particles for analysis.
Medicine:
- Blood and Urine Analysis: Separating blood cells from plasma or urine sediment from urine for diagnostic purposes.
- Sterilization Techniques: Sterilizing solutions using filter sterilization techniques.
The filter paper here is of 80gsm and is of slightly fine in quality. Can be used for filtering needs in school projects, and general chemistry related experiments. However, for a high quality accurate filtering purposes, please use whatman or other analytical filterpapers. These filter papers are suitable for soil residues removal, coarse material separation from liquid dissolvents etc.