This might not be applicable to your problem, but this is what I saw running soluble organic matter extracted from plants using a methanol-chloroform-water mixture in smooth tin cups:
After running 100 of these samples pinholes appeared and tin spilled out and ran down the outside of the combustion column. The reactor was fairly new and this happened even though only c. 1% of chloroform should be soluble in the aqueous phase, and all samples were thoroughly dried in the oven beforehand. When I ran water-extracts in the same tin cups, the pinholes didn't appear.
The most likely culprit to attack the quartz was Cl. I had success wrapping the tin foil parcels in silver capsules which left my column intact as it presumably made AgCl instead of attacking the quartz.
From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On Behalf Of Peter Stow
Sent: Friday, 6 September 2013 7:09 AM
To: [log in to unmask]
Subject: [ISOGEOCHEM] Trichlorsilane
We are looking at analysing trichlorsilane using EA. Does anyone have
experience analysing trichlorsilane or related compounds on a combustion
elemental analyser for d13C? And does the higher levels of Cl affect
the combustion column?
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