[aeacfm]

what is the diffeence between wrking buffers and calibrtion buffer ?
another question  some times wheni calibrate wth eecrode with buffer and afte time calibrating the same electrode with te same buffer the calibrtion factor differs highly also the slope also differs highly  a it may not rech the tolerated value , what is the reason for this

[AWK]

A working buffer stabilizes pH in chemical reaction.
A calibration buffer is an incorrect name of calibration solution with constant pH.

[aeacfm]

thanks for reply .
then the other question