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. 2020 Jan 10;10:142. doi: 10.1038/s41598-019-56705-3

Figure 7.

Figure 7

IFC measurements using different trigger levels. (a) The impedance signal at low trigger levels (0.01 V) is higher than the set threshold and the signal will be considered as a cell/particle, but can include measurement signals from the cell debris and electrical noise. Higher trigger levels (0.06 V) will exclude erroneous background signals, however smaller cells/particles might be lost due to the high threshold. (b) Density scatter plot using trigger levels of 0.01, 0.02, and 0.06 V. A low trigger level (0.01 V, red) includes signal from debris as seen as distinct population at low amplitude. This is avoided with higher trigger levels such as 0.02 V and 0.06 V. However, too high trigger levels, here > 0.06 V, might exclude cells/particles.