by Paul Stockton | Aug 21, 2024 | Technical Articles
Fire Damage Chloride Testing Dangerous Chloride contamination occurs when the chloride component of Polyvinylchloride (PVC) is released when it is burnt. PVC is commonly used as the insulation material of electrical cabling and a quantities of PVC normally consumed...
by Will Stockton | Jun 21, 2024 | Technical Articles, Water Testing
The Determination Of Sulphate In Water As there is no direct measuring Sulphate ISE the analysis is performed using a sample subtraction technique with a Lead ISE as the sensor. There is no limit to the concentration range of Sulphate being measured. All that is...
by Paul Stockton | Jun 11, 2024 | Corrosion
Hull Potential and Boats HULL POTENTIALS EXPLAINED. A metal hull in water will inevitably have the potential to become corroded. Add a little stray direct current (DC) and this can become devastating. Careful owners will take the necessary precaution of employing...
by Paul Stockton | Jun 11, 2024 | Corrosion, Water Testing
REDOX (Reduction-Oxidation) Testing REDOX potential is basically a measure of the ability of the sample being tested to reduce or oxidise. As the processes of reduction and oxidation involve the transfer of electrons it follows that the REDOX potential of any...
by Will Stockton | May 31, 2024 | Water Testing
The Determination of Potassium in Water This is a method for determining the concentration between 0.1 – 1000 ppm potassium in ground waters, drinking water and waste waters. Equipment Required 1. Model QP459 Ion Meter 2. 3031 Potassium Combination ISE 3....
by Paul Stockton | May 31, 2024 | Boats & Hull Potential
Hull Potential and Corrosion Owning a boat is usually expensive. Protecting the hull from corrosion and reducing the time a boat spends out of the water is therefore important to all owners of Aluminium and Steel hulled craft. We explain how and why we measure hull...
by Will Stockton | May 31, 2024 | Electrochemistry Theory
Ion Selective Electrodes (ISE) Theory What is an ISE and how do they work? The first in a series of posts to help you understand the principles behind ISE analysis. ION SELECTIVE ELECTRODES (ISEs) Introduction An Ion selective electrode is an electrochemical...
by Paul Stockton | May 31, 2024 | Technical Articles
Measuring Aluminium Ions There is no Ion Selective Electrode for Aluminium however due to the strong reaction with Fluoride in solution an indirect method is possible using a Fluoride ISE and some prepared reagents. A simpler method is possible DETERMINATION OF...
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 | Electrochemistry Theory
Methods of Analysis by ISE Unlike a pH electrode an ISE is not just dipped into a solution and a direct readout obtained. There are several ways to get the right result and this will often depend on the type of sample and the environment the sample is located in. ...