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Atotech bondfilm bath determination of chlorides

Anyone had any experience with this bath and/or analysis? The bath contains hydrogen peroxide, sulfuric acid and BTA. I am attempting a silver chloride ppt titration. The company suggests titration of a spiked sample and subtracting the ml used for the spike. The bath itself is not giving an inflection. I made a fresh lab bath and I can get reproducible results and inflections for both the sample and the spike. The used bath is ppt a brownish material before the inflection. I am telling them it can't be done this way... Ant ideas/comments?

Linda Croft
Curcuit board manufactor - lab tech - Endicott, NY
October 21, 2009

My first suggestion is to contact you rep from the company selling you the material and specifying the analytical method. Have them put you in touch with the correct person to answer your question.

Gene Packman
process supplier - Great Neck, New York
October 31, 2009

It is the supplier that gave me the method. I am working with them as they currently have my process bath sample. I am assuming it's something in our process/product that is building up. Just wondering if anyone else has had any problems for input to the suppler.

Linda Croft
Circuit board manufactor - lab tech - Endicott, New York
November 2, 2009