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. 2022 Aug 23;414(23):6977–6987. doi: 10.1007/s00216-022-04266-2

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Fig. 4 — o₁/w/o₂ double-emulsion droplets were detected with ESI–MS. Core oil phase o1, n-dodecane; aqueous shell phase w, adenosine and venlafaxine (each 100 µM) in purified H₂O with 0.2 wt% Triton-X-100; continuous oil phase o₂, Novec 7500 with 0.5 vol% PicoSurf. Sheath liquid, MeOH/H₂O (1:1) with a flow rate of 50 µL/min