Fluoride Ion selective electrode measurements

[higherme]

Does anyone know why we prepare F- containing solutions with plastic beakers and cups instead of the regular glass beakers before measuring the responses with F- ion selective electrode
Is it because F- in corrosive?

where can i find infomation on this?


Thanks a lot~

 

[symbolipoint]

Fluorides can react with or etch glass.

 

[Blueshift5]

I can provide some insight into why we use plastic beakers and cups when preparing F- containing solutions for measurement with F- ion selective electrodes.

Firstly, it is important to note that fluoride ions (F-) are highly reactive and can easily bind to other ions or molecules, making them difficult to measure accurately. Therefore, it is crucial to minimize any potential sources of contamination or interference during the preparation and measurement process.

Plastic beakers and cups are often used because they are less likely to contain trace amounts of other ions or molecules that may interfere with the F- measurement. Glass beakers, on the other hand, can contain small amounts of sodium, potassium, or calcium ions which can interfere with the F- measurement.

Additionally, F- is known to be corrosive to glass, especially at high concentrations. This can lead to leaching of glass particles into the solution, which can also interfere with the F- measurement. Therefore, using plastic beakers and cups is a precautionary measure to ensure the accuracy and reliability of the F- measurement.

To find more information on this topic, I recommend researching scientific articles or textbooks on ion selective electrodes and fluoride analysis. You can also consult with a chemistry expert or reach out to the manufacturer of the F- ion selective electrode for specific guidelines and recommendations on proper preparation and measurement techniques.