Message-Id: <[log in to unmask]> From: [log in to unmask] (P. G. Wilson) Date: Sat, 7 Dec 1996 10:25:50 -0500 To: [log in to unmask] Subject: GEN: TOC Labs and Acid Copper Content-Type: TEXT/PLAIN; CHARSET=US-ASCII Content-Transfer-Encoding: 7BIT MIME-Version: 1.0 (WebTV 1.0) (1) I am looking for labs for routine or round robin analysis of total organic carbon in acid copper baths. (2) I am aware that graphite is not detectable due to insufficient reaction in persulfate/CO2 detector instruments without initial combustion. a. Does one generally know whether all graphite is removed during batch carbon treatment? b. What are the negative ramifications of graphite in an Acid Copper bath? (e.g., Nodules??) Thanks in advance. P.G. Wilson Chemist