Answer / ashok maduri

Always keep your pH electrode moist. We recommend that you store your electrode in storage solution. If
storage solution is not available, use either a pH 4 or 7 buffer solution. DO NOT store electrode in
distilled or deionized water this will cause ions to leach out of the glass bulb and render your electrode
useless.
After storage, you may notice white KCl crystals forming outside your electrode. This will not interfere
with measurements. Simply rinse the electrode and blot dry before use.

In the method validation proceedure,lod & loq calculation we use the formulae for LOD=3.3*SD/slope and for LOQ=10*SD/slope,why we use 3.3 & 10 in the formulae?

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