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. 2021 Jan 31;11(2):373–395. doi: 10.1007/s13346-021-00918-5

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© The Author(s) 2021, corrected publication 2021

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Fig. 2 — Simplified scheme of an AF4 channel operating in the normal mode. Sample injection a; sample focusing b; separation of the particle “clouds” with characteristics elevation l_n c