This document establishes key principles for the investigation of microplastics in drinking water and water with low content of natural suspended solids using a microscopy technique coupled with vibrational spectroscopy.
This method is applicable to:
This method is applicable to water with a low content of organic matter and other suspended matter as defined in ISO 6107 (1ย mg/l to 100ย mg/l or lower when interfering with the determination), i.e.,
Given the very low concentrations of microplastics usually present in these waters, special attention needs to be paid to potential sources of contamination during sample preparation.
This method is intended to determine and characterize large numbers of particles in the sample in automatic mode.
This method can also identify the nature of the other particles that are outside the scope of this document, for example minerals, proteins, cellulose and pigments.
This method does not apply to the characterization of substances intentionally added to or adsorbed on the surface of microplastics. This method does not apply to the determination of the geometric shape of microplastics.
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