Measurement of Volatile Fatty Acids in Silage through Odors with Nanomechanical Sensors.

On the one hand, outputs at t 2 to t 5 of hydrophobic PS increase monotonically with increasing concentrations of VFAs, while the outputs at the beginning of the rising curves (i.e., t = t 1 ) show a decreasing trend with respect to the concentrations of VFAs ( Figure 5 a).

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