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commonaskedquestions_ise [22/02/2019 10:52]
pieter
commonaskedquestions_ise [22/02/2019 10:55]
pieter [How often do you need to calibrate?]
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 =====Frequently Asked Questions (Ion-selective electrodes)===== =====Frequently Asked Questions (Ion-selective electrodes)=====
 ====How often do you need to calibrate?​==== ====How often do you need to calibrate?​====
-Recalibrate ​at least once a week, or daily if in doubt of your results being accurate or reproducible. Check the manual for more information on each ISE about the expected stability.+Calibrate ​at least once a week, preferred is **daily**. Calibrate ​if in doubt of your results being accurate or reproducible. When subject to temperature changes, mind that a difference of 1°C causes a measurement error of 2%. Check the manual for more information on each ISE about the expected stability. ​
 ====How long after being opened or made are standards good?==== ====How long after being opened or made are standards good?====
 The stock standard will last at least six months before discarding, whereas diluted standards treated with ISA/pH buffer should be prepared weekly. The stock standard will last at least six months before discarding, whereas diluted standards treated with ISA/pH buffer should be prepared weekly.
commonaskedquestions_ise.txt · Last modified: 22/02/2019 10:55 by pieter