Hello Robert

I would have thought HPLC grade of solvent.

In the archive is there any reference to the procedure for cleaning
stainless steel gas supply lines and tubing for connecting the sample and
reference inlets? We may need to replace ours and also clean the S/S valve
assemblies on a MAT-253/Kiel carbonate device. We have an ongoing problem
with contamination.


John Hill

At 09:09 14/07/2005, you wrote:
>I've checked the archives and talked to some folks concerning the
>syringe cleaning procedure for the H/Device.
>Isogeochem archives came up with ethylacetat, methanol and aceton.
>Any recomendations for the solvent and purity?
>Dr. Robert van Geldern
>Leibniz Institute for Applied Geosciences (GGA)
>S3: Geochronology and Isotopehydrology
>Stilleweg 2, 30655 Hannover, Germany
>phone: +49-(0)511-643-2313 (office), -2539 (lab)
>fax: +49-(0)511-643-3665
>mailto:[log in to unmask]

John Hill
Mass Spectrometry Facility
University College London
Chemistry Department
20 Gordon St.

Tel:  020 7679 4605
Fax: 020 7679 7451
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