-----Ursprüngliche Nachricht-----
Von: R.A.JANI <[log in to unmask]>
An: [log in to unmask] <[log in to unmask]>
Datum: Mittwoch, 25. August 1999 11:13
Betreff: D/H:CATALYST-PT STICKS


>Dear Friends;
>
>We have a GEO20-20 Stable Isotope Ratio Mass Spectrometer supplied By PDZE
>Europa, U.K., alongwith WES, CAPS and Manifold.
>For analysis of D/H ratio in water samples, we use Pt sticks as Catalyst.
>I like to know the following points :
>(1) Is the sticks are reusable , for how long? ( One can use them how many
>times ).
>(2) What is the correct method for their reactivation ? Can you kindly
>send me any published paper/technical report regarding this. Please.
>(3) How one can identify the quality of Pt sticks ? Is there any change in
>look or any other physical method...
>
>Eagerly waiting for your valuable suggestions/reply.
>
>With regards,
>
>JANI
>
>---------------------------------------------------------------------------
---
>R.A. JANI
>OCE CS Group
>Earth Science & Solar System Division
>Physical Research Laboratory
>Navrangpura, AHMEDABAD 380 009
>Phone : (O) +91 (79) 6462129 Ext. 4261/4270 (R) 7503956
>FAX : +91(79) 6301502
>email : [log in to unmask]
>---------------------------------------------------------------------------
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>


Sir:

I forgot to give you information on equilibration-time.
Normally 30 min at 18 deg.centigrades is good. For safety we use 120 min.
Could you, please send us some of your results

Hans Friedrichsen