The tip of the electrode should be rinsed with deionised water between measurements. To maintain electrode health strongly acidic samples, strong detergents or organic solvents should be avoided. To take a reading ammonia electrodes require the end cap to be filled with ammonium chloride solution. This solution should be removed after each usage, so that… Continue reading How do I maintain my ammonia electrode?
Month: September 2019
Testing Dissolved Oxygen in Wine
Dissolved oxygen in wine can be beneficial to some varieties in small amounts, but otherwise is known for reducing the quality and lifetime of the wine. It is therefore important to be able to measure and control dissolved oxygen throughout the production and bottling stages. Flint Vineyard measure both pH and dissolved oxygen throughout their… Continue reading Testing Dissolved Oxygen in Wine
How can I improve the performance of my crystalline ion selective electrode (ISE)?
Crystalline ion selective electrodes (ISEs), such as the TRUEscience chloride, bromide and copper, tend to develop an oxidised layer on the crystal sensing tip after a period of time. This may lead to the electrode having a slower response. To improve performance first make sure the cyrstal surface is dry, then use a very fine… Continue reading How can I improve the performance of my crystalline ion selective electrode (ISE)?
Will temperature effect my Ion Selective Electrode (ISE) measurements?
The answer is yes, temperature is an important factor when making any type of electrochemistry measurement. A rise in temperature of a solution will increase the kinetic energy and accelerate the speed of which the ions move around. This will higher the chance the ion you are measuring will hit the sensing tip of the… Continue reading Will temperature effect my Ion Selective Electrode (ISE) measurements?
What is an ionic strength adjustment buffer (ISAB)?
Ionic strength adjustment buffers are required to make accurate ion measurements using ion selective electrodes (ISEs). ISEs can be used to test a wide range of ions and for many applications such as potassium in soil or chloride in water. When you have a solution with a large number of ions the individual ions move… Continue reading What is an ionic strength adjustment buffer (ISAB)?