[ssobhdel]

Hi guys,
I am going to determine the percent of lead in galena(ore sample).
As you probably know the percentage of lead in pure galena is about 70% and this is too high for analysis by spectrometric methods.
I read that is titration of lead solution with EDTA but I don`t have exact method.
It`s appreciated if you quote me.
regards.

ss

[JGK]

As you probably know the percentage of lead in pure galena is about 70% and this is too high for analysis by spectrometric methods.

Why? What's wrong with either starting with a much smaller sample or extracting the lead and performing a dilution on the original extract to measure using a spectrophotometer.

[Vidya]

you can get the procedure for titration  of Pb with EDTA from google search also
check this link
http://www.google.co.in/url?sa=t&source=web&cd=3&ved=0CC4QFjAC&url=http%3A%2F%2Fpersonal.cityu.edu.hk%2F~bhtan%2FAn004%2FA1.doc&rct=j&q=titration%20of%20lead%20solution%20with%20EDTA%20&ei=igMUTrTlE8borAfYi4WIBA&usg=AFQjCNFSfmuZ5WecE-I5gJUffeXx1xLtTw&sig2=l2vEBAEbYWo9xt6BpgVj4Q&cad=rjt


this link will give you MS word file of one of such experiment with complete procedure.