Dear all, 

Thank you very much for your recommendations

Regards


-- 



Biel Obrador

Departament d'Ecologia
Facultat de Biologia
Universitat de Barcelona
Av Diagonal, 645
E-08028 Barcelona
SPAIN
Telf: +34 93 402 15 06
Fax:  +34 93 411 14 38

EMAIL: [log in to unmask]



Missatge de lowell stott <[log in to unmask]>:

 Tim,
 Our solution to this was to enlarge the opening in the ss boats and place a
 small, 3mm glass bead on top of the sample. This holds the material (i.e.
 forams) in the boat until submerged in the acid. 
 Lowell
 
 Dr. Lowell D. Stott
 Dept. Earth Sciences
 University of Southern California
 3651 Trousdale Pkwy
 Los Angeles, CA 90089
 213-740-5120
 earth.usc.edu/~stott
 
 
 -----Original Message-----
 From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On Behalf
 Of Heaton, Timothy HE
 Sent: Tuesday, May 23, 2006 9:07 AM
 To: [log in to unmask]
 Subject: Re: [ISOGEOCHEM] jumping ostracod shell in Kiel device
 
 
 I'm not familiar with the Kiel setup, but we experienced problems with
 forams jumping out of the 'buckets' on the carousel of the VG Isocarb
 (though ostracod shells didn't). I presume this resulted from slight
 jiggling of the buckets as the carousel turns round. Yes, the solution was
 to crush them.
 
 Tim H.E. Heaton
 
 NERC Isotope Geosciences Laboratory 
 British Geological Survey
 Keyworth, Nottingham NG12 5GG, England
 (www.bgs.ac.uk/nigl/index.htm)
 
 Tel. +44(0)115 936 3401
 Email: [log in to unmask]
 
 
 
 -----Original Message-----
 From: Stable Isotope Geochemistry [mailto:[log in to unmask]]On
 Behalf Of Biel Obrador
 Sent: 23 May 2006 13:22
 To: [log in to unmask]
 Subject: [ISOGEOCHEM] jumping ostracod shell in Kiel device
 
 
 Dear subscribers
 
 I am running single ostracod shells on a MAT252 with a Kiel device, and we
 found that some of the valves were not completely dissolved. We realised
 that in such situation the shell, or part of it, was on the top of the vial,
 so that it may have jumped probably due to a bubble during the reaction with
 acid.
 
 Has anyone of you found this problem before? Could you give any
 recommendation? 
 One possible way to avoid such a jump would be crashing the shell. Some
 ideas on this or any other thought?
 
 Thanks in advance
 Best wishes
 
 
 
 -- 
 
 
 
 Biel Obrador
 
 Departament d'Ecologia
 Facultat de Biologia
 Universitat de Barcelona
 Av Diagonal, 645
 E-08028 Barcelona
 SPAIN
 Telf: +34 93 402 15 06
 Fax:  +34 93 411 14 38
 
 EMAIL: [log in to unmask]
 
 
 
 
 
 
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