Hello Everyone,

We are in the process of deciding which company to purchase a new water 
isotope mass spectrometer from, GVI or Finnigan.
We are looking at one mass spectrometer to run both isotopes.
The two systems that we are looking at are GVI's Isoprime coupled with the 
AquaPrep and PyrOH or the Finningan Delta+XP coupled with the GasBench II 
and HDevice.
I am looking to contact all labs that run both water isotopes on a single 
mass spectrometer, and hopefully close to one of these two configurations.
I would love to speak with you, and if possible be able to come and visit 
your lab, to be able to get a better feel for each of these systems be for 
we make the big purchase.

The things that we would like to know, are the normal questions.
        What is the precision and acuracy?
        What is the throughput, both in samples per day, and time per 
sample?
        Do you switch systems regularly, and how long does it take?
        What type of downtime have you had?
        How is the ease of use, both with software and hardware?
 
Please let me know if you have any experience with this type of 
configuration, and if I may come and see it.
I am planning for a trip in late September, early October.

Thank you for your time,
Valerie Claymore


Lab Manager
Stable Isotope Lab
GNS Science
30 Gracefield Road
Lower Hutt
New Zealand
+64(4)570-4645
[log in to unmask]