○ Add 100 mL of 30% hydrogen peroxide solution to each beaker containing the toilet paper samples. ○ Place the beakers on a magnetic stirrer and heat gently using a hot plate to accelerate the digestion process. ○ Stir the mixture continuously and maintain the temperature around 60-70°C. ○ Monitor the digestion process until the paper fibers are fully dissolved, leaving behind microplastic particles. This process might take several hours. Add more hydrogen peroxide if needed to ensure complete digestion.