Acid digestion of nonwoven textiles for measuring their trace element content by ICP techniques

Last updated on 8-7-2022 by Daniela Montalvo Grijalva

Public Access


Non-peer reviewed scientific publication



We present herein a digestion method based on high-temperature (260 °C) microwave heating and strong acidic media in order to perform a complete digestion of nonwoven textiles, which can be found in face masks. In particular, this protocol allows the digestion of PET-, PTFE-, polyamide- and elastane-containing textiles resulting in a complete release of metallic contents in order to analyze their elemental contents by ICP techniques.

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