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. 2018 Feb 5;3(2):1498–1508. doi: 10.1021/acsomega.7b01973

Figure 4.

Figure 4

Droplets signal enhanced by sheath flow: (A) small (10 nL) pyridinyl amine (upper) and ketone (lower) droplets with three concentrations were analyzed at 5 μL/min through a 150/360 Teflon needle. The left is without sheath flow and the right is with 20 μL/min sheath flow (20% ACN, 0.1% formic acid) (B) regular size (50 nL) amine (upper) and ketone (lower) droplets were analyzed at 15 μL/min through a narrower (120/250) Teflon needle. The left is without a sheath flow and the right is with a 30 μL/min sheath flow.