Laboratory analysis of samples: Fig. L. Microplastics from post-treatment wastewater (courtesy of Dr. Sherri Mason- Fredonia).
• The samples collected in the 355 um, and 125 um sieves were stored in
50 mL test tubes (Fig. F).
• 20 ml H2SO4 and 20 ml of H2O2 were added to sieve samples.
• Acid digestion of samples occurred at 75oC on a heated stir plate.
• 20 ml of H2O2 were added as aliquots until all organic material was
dissolved.
• The acid-peroxide digested samples were filtered through a 125 um sieve
and washed with DI water.
• All samples were processed under a dissecting microscope for fine microplastic
retrieval.