What is the proper way to store the IntelliCAL™ ISENa381 Sodium Ion Selective Electrode (ISE)?

Document ID

Document ID TE3075

Version

Version 2.0

Status

Status Published

Published Date

Published Date 27/05/2017
Question
What is the proper way to store the IntelliCAL™ ISENa381 Sodium Ion Selective Electrode (ISE)?
Summary
Storage of IntelliCAL™ ISENa381 Sodium Ion Selective Electrode (ISE)
Answer
For short term storage, put the filling-hole cap in the filling hole and store the probe in a 25mL of 100 mg/L Na+ standard solution with one Sodium Ionic Strength Adjustor (ISA) Powder Pillow (Catalog Number 4451569).

For long term storage:
1) Put the filling hole cap in the filling hole.
2) Rinse the probe with ISA rinse solution (one Sodium ISA per 25mL of deionized water). Never rinse the probe with deionized water alone.
3) Fill the probe soaker bottle half full with Electrode Fill Solution, 0.02 M NH4Cl (Catalog Number 2965126).
4) Loosen the soaker bottle cap and put the soaker bottle on the probe. Turn the soaker bottle cap clockwise to tighten the soaker bottle cap.
5) Make sure the solution in the soaker bottle completely covers the glass bulb and reference junction holes.
6) Before use after long-term storage, condition the probe in 25mL of 100 mg/L Na+ standard solution with one Sodium ISA for at least 8 hours.