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Figure 1 | BMC Biotechnology

Figure 1

From: Potential errors in conventional DOT measurement techniques in shake flasks and verification using a rotating flexitube optical sensor

Figure 1

Oxygen transfer rate during sulfite oxidation in shake flasks with and without an electrode immersed into the rotating bulk fluid; experimental conditions: 0.5 M Na 2 SO 3 , 0.012 M phosphate buffer, 10-7 CoSO 4 , initial pH = 8, T = 25°C, shaking diameter d 0 = 50 mm, shaking frequency n = 150 rpm; (closed circle) filling volume V L = 30 ml, with electrode, (open circle) filling volume V L = 30 ml, without electrode, (closed triangle) filling volume V L = 40 ml, with electrode, (open triangle) filling volume V L = 40 ml, without electrode.

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