You are not alone with these questions. I too would be interested to learn what Delta-V users experiences are in this respect.
Some Delta-V users have mentioned to me seeing rather high water background readings (higher than on other instruments in the same lab), something that may or may not be related to the source seal material.
Another question would be if long-term use (> 3 years) would result in noticeable ion burn effects on the analyzer material?
From: Stable Isotope Geochemistry [[log in to unmask]] On Behalf Of Sarthak Chakraborty [[log in to unmask]]
Sent: 18 December 2007 04:45
To: [log in to unmask]
Subject: [ISOGEOCHEM] SS analyzer vs Al analyzer
I have a technical query which I like to get an answer from the users rather than from the manufacturer.
The Thermo Fisher has introduced an aluminum alloy based analyzer instead of stainless steel in their Delta V Plus CF IRMS. I would like to know if it may affect the vacuum in general and particularly the long term performance of the machine.