Potassium in Water

Potassium in Water

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....
Ion Selective Electrodes – Theory

Ion Selective Electrodes – 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...
Methods of Analysis by ISE

Methods of Analysis by ISE

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. ...
Sulphide ISE Reagent Prep

Sulphide ISE Reagent Prep

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...