I went to the ISOGEOCHEM archives and read a bit of the thread on this.

Just for curiosity, and because I'm only just getting the hang of this, how
might I get my paws on teflon boats (for acid) that will fit in the
exetainers? I've been running my GasBench for about two weeks now, and am
already getting annoyed with the whole acid delivery problem. I expect it
will only get worse once I start running apatites instead of carbonates.

Thanks,

~Penny

At 06:42 PM 6/21/2005, you wrote:
>All
>
>We encountered different problems with acid delivery on our gas bench
>(mainly acid reacting with the septa and clogging the extraction needles)
>and went to a system where we introduced the acid into the exertainers in
>small cups that we then tipped following flushing. There was e-mail traffic
>on ISOGEOCHEM on this topic some time ago (including a description of the
>method) which should be in the archives. Other groups had come up with
>similar solutions. We have played around with various variations, and in the
>end sacrificed the elegence of doing the whole acidification-extraction
>process fully automated for a method that we have found to be robust.
>
>Ian
>
>_______________________________________________
>Dr Ian Cartwright
>Head - School of Geosciences
>Hydrogeology and Stable Isotopes
>Monash University
>Clayton Vic. 3800, Australia
>t: 03 9905-4887 / 4879, f: 03 9905-4903
>
>...water, our greatest resource
>
>

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