"Without any doubt there is lead in my drinking water"
Hi Taray, a great application for the Si-PIN detector, thanks for setting up that experiment.
Test everything! (you never know what you'll find)
Geo
PS is Barium used in lab glass? I am testing a sample sealed in ampule, very clear 32.19 peak, can't imagine it being in the actual sample, but maybe so......
G
----- Original Message -----
From: taray singh via groups.io <sukhjez@...>
To:
[email protected]Sent: Sun, 01 Nov 2020 08:23:58 -0500 (EST)
Subject: Re: [XRF] Chinese water filter analysis
Hi guys
I repeated this test with additional RO discharge residue soaked in filter paper pressed against a yellow sample cap
As a control I also checked a new dry filter paper with the cap
Both samples were run for 1000 counts for statistical significance .
Ok Charles,this is a long run .
Quick XRF of the iron/Al electrodes
The RO sample show Fe and Pb peaks
Fe is coming from galvanic reaction.
Both the control and electrodes show no Pb peaks
Without any doubt there is lead in my drinking water
My impression is that the iron electrode acts as catalyst? for electrolytic precipitation reactions.
Pics are RO water residue,control sample and electrodes
