What is ph meter electrode protection fluid
A pH meter is an instrument used to determine the acidity or alkalinity of a solution. pH meters work on the principle of a primary cell, in which the electric potential between the two electrodes of the primary cell is related to the properties of the electrodes and the concentration of hydrogen ions in the solution according to Nernst's law. There is a correspondence between the electric potential of the primary cell and the concentration of hydrogen ions, and the negative logarithm of the concentration of hydrogen ions is the pH value. pH meter is a kind of common analytical instrument, which is widely used in the fields of agriculture, environmental protection and industry.
The pH meter electrode protection liquid is a liquid to protect the PH meter electrode, mainly composed of potassium chloride, preservatives and so on. The electrodes used in the laboratory are composite electrodes, the advantages of which are easy to use, not affected by oxidising or reducing substances and faster equilibrium. When using the electrode to add liquid on the mouth of the rubber sleeve and the lower end of the rubber sleeve to remove all, in order to maintain the electrode potassium chloride solution in the hydraulic pressure difference. pH meter protective solution is usually used saturated KCL solution, but it should be noted that some imported electrodes, such as METTLER TOLEDO, Sartorius and Hash, etc. are using 3 mol / L KCL, some of the electrodes need to be with the silver ions in the protective solution, so the preparation of the You should read the instruction manual beforehand to confirm the electrolyte and then choose how to prepare it.
