Table 2.

Speed of disc (burst frequency).

Sectioned chamber (μL)	Theoretical burst frequency (RPM)	Observed burst frequency (RPM)
		SET 1 Cu – saline/artificial sweat	SET 2 Cu – saline/artificial sweat	SET 3 Cu – saline/artificial sweat	SET 4 Cu – saline/artificial sweat
7.5	385	320	320	350	370
20	400	320	320	350	370
45	>400*	480	470	470	490
120	>400*	510	520	520	500

^*The theoretical speed was calculated using the burst frequency formula reported in Madou et al [24] without the account for additional passive valves.