Template:OSC Oxygen signal1: Difference between revisions
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Q3. The maximum Oxygen concentration of another Oroboros O2k is only about 140. I don't how to increase the starting point of oxygen concentration. | Q3. The maximum Oxygen concentration of another Oroboros O2k is only about 140 ΞM. I don't how to increase the starting point of oxygen concentration. | ||
Latest revision as of 11:39, 17 June 2020
Anonymous user
Question:
Q1: The Oxygen Concentration couldn't go down while I tried zero oxygen calibration. No matter how much solution I added, the oxygen concentration still remain the same. I reassembled, but it still keeps the same. The data is attached.
Q2: The chamber B's oxygen slope is not stable. This is a new problem I have never seen. Please see the attachment.(2019-04-26)
Q3. The maximum Oxygen concentration of another Oroboros O2k is only about 140 ΞM. I don't how to increase the starting point of oxygen concentration.
Answer:
A1: I suspect that the dithionite solution was not correctly prepared or not fresh. Dithionite loses activity quite fast, so you need to make it freshly. Please check this site: http://bioblast.at/index.php/Dithionite
A2: While there is a difference between chambers A and B, the stability of the signal is still within the acceptable range of noise given by the specifications of the instrument, see: Oxygen_sensor_test.
A3: You may simply need to calibrate, please see here: http://wiki.oroboros.at/index.php/O2_calibration_-_DatLab