by Paul Stockton | May 31, 2024 | Technical Articles
EDT Electrodes and Mettler Toledo Meters There are many pH and ION meters in laboratories all over the world. Many years ago some manufacturers had their own style of connector which prevented competitors from substituting their electrodes with their own. Now the vast...
by Will Stockton | May 31, 2024 | Technical Articles
Sulphide ISE Reagent Prep Sulphide Standards and Anti-Oxidant Buffer Preparation Sodium Sulphide standard solutions can be prepared from reagent grade Sodium Sulphide Hydrate Na₂S.9H₂O. It is advised that all Sulphide solution preparation be performed in a fume hood...
by Paul Stockton | May 30, 2024 | Technical Articles
EDT Electrodes and Hanna Meters There are many pH and ION meters in laboratories all over the world. Many years ago some manufacturers had their own style of connector which prevented competitors from substituting their electrodes with their own. Now the vast majority...
by Will Stockton | May 30, 2024 | Technical Articles
Determination of Silver Concentration in Fixer Solutions Method 1: This is a method for the determination of silver ion concentration in hypochlorite based fixer solutions Equipment Required 1. Model QP459 Ion Meter 2. 3211 Silver Combination ISE 3. ...
by Will Stockton | May 23, 2024 | Technical Articles
Cleaning a Fluoride ISE Q My Fluoride ISE has stopped measuring at very low levels (below 0.1ppm). It used to be very sensitive but no longer what can I do? A The sensitive membrane will have been contaminated or coated with something. The easy solution is to clean...
by Will Stockton | May 23, 2024 | Technical Articles
Electrode Storage Q In my lab I noticed that the conductivity electrodes are stored in pH7 buffer with all the pH electrodes. Can that be right? A Great question! No is the short answer. Conductivity cells should be rinsed after use with deionised water and then...
