spICP-MS characterisation of released silver nanoparticles from (nano)textile products

The low limits of detection and information regarding the concentration size distribution nanoparticles provided by single particle inductively coupled plasma mass spectrometry (spICP-MS) has been taken in advance for assessing released silver from (nano)textiles (nanosilver textiles). releasing procedure consisted using orbital-horizontal shaking (100 rpm, 20 °C, 30 min) ultrapure water (10 mL) as an extractant, it was found to guarantee stability (silver nanoparticle distribution). Stability further investigated at several filtration (0.22, 0.45 5.0 μm) centrifugation conditions, stages required fluff removal after extraction just before spICP-MS determinations. Filtration μm filters not affect concentrations distributions. extractive plus shown a limit quantification number 4.59 × 104 1.53 105 per gram textile, respectively, whereas 12 nm obtained. Repeatability overall 14% concentration) 6% (mean size). Similarly, analytical recovery assays standard 20, 40, 60 led recoveries within 102–113% range. high degree fixation AgNPs fabric softness process integrity non-quantitative (extraction percentages between 0.3 9.0% depending on textile sample). However, methodology developed proven be highly efficient characterization extracted AgNPs, robust since during procedure.