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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Anal Bioanal Chem. 2016 Aug 8;408(27):7629–7640. doi: 10.1007/s00216-016-9844-x

Fig. 1.

Fig. 1

Distribution of gold across the layers of the sucrose density gradient for Mixture 1 containing 30, 60, and 100 nm AuNPs by conventional ICP-MS after 20 min of centrifugation. Total gold content in individual 1 mL aliquots are plotted from the top of the conical tube to the bottom in the eMF (solid line) and ePNC (dotted line) conditions, respectively