Hi guys
This is my latest update
The pics are self explanatory
The electrodes are screw in type and water level only covered the lower 2 thirds
No adjoining surface is in contact.
More importantly the electrodes seems clear of lead impurities.
Anyway this can be an interesting home study
Study of heavy metals in domestic tap water with xrf
Other methods are using activated charcoal or coffee ground
Coffee is readily available and has good absorption characteristics.
My next project will be coffee ground which is easy to sample
You don't need RO water.
Just collect early morning first flush tap water in some coffee ground
Dry into a cake and scan
Repeat several times if necessary to get the right concentration.
Taray
