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...
by Will Stockton | May 23, 2024 | Technical Articles
Chloride ISE Maintenance All crystalline ISEs do start to develop an oxidised layer on the crystal after a period of time. If the electrode is immersed for a long time it also gets a little soft on the outer layer. All you need do is dry the grey crystal surface and...
by Paul Stockton | May 8, 2024 | Technical Articles
Aluminium Measurement using a Fluoride ISE Although there is no commercially available sensor for Aluminium, the concentration in solution can still be measured using a Fluoride ISE due to the reaction between Aluminium and Fluoride Ions forming a stable compound....
