Fig. 5.
Au recovery for different AuNP coatings in SONE-1 extracts after acid digestion and ICP-MS analysis. The spiked AuNP concentration was 500 μg kg−1.
Au recovery for different AuNP coatings in SONE-1 extracts after acid digestion and ICP-MS analysis. The spiked AuNP concentration was 500 μg kg−1.