How does the sensitivity percent in the sensION+ calibration data relate to calibration slope and which pH buffers are used to calculate each percent?

Document ID

Document ID TE7109

Version

Version 1.0

Status

Status Published

Published Date

Published Date 13/03/2017
Question
How does the sensitivity percent in the sensION+ calibration data relate to calibration slope and which pH buffers are used to calculate each percent?
Summary
How the slope/sensitify is presented in the sensION+ calibration data
Answer
When viewing the calibration data in a sensION+ meter it provides "Sens:" values which are the sensitivity. Sensitivity is the actual slope divided by the theoretical value multiplied by 100. This gives a percentage which shows how close the actual slope is as compared to theoretical. The desired percentage is close to 100%

If more than two pH buffers are used to calibrate there will be more than one sensitivity percent listed in the calibration data. If three buffers are used to calibrate (for example 4, 7 and 10) the first sensitivity/slope percent listed will always be the value between the lowest pH buffer and the middle pH buffer (in this example the 4 and the 7) and the second sensitivity/slope value will always be the value between the middle pH buffer and the highest pH buffer (in this example the 7 and the 10).
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