Hi Joe,
Several years ago I published a short paper on borosilicate versus
soda-glass vials. The reference is below and it may be of some use to
you. As a result of this work, we use round-bottom borosilicate vials
exclusively.
I can't help you much regarding cleaning since we mostly use the
Gasbench for oxygen in water, where we just rinse the vials carefully
and dry them before re-use.
Nelson, S.T., 2000, Sample vial influence on the accuracy and precision
of carbon and oxygen isotope analysis in continuous flow mass
spectrometric applications: Rapid Communications in Mass Spectrometry,
v. 4, p. 293-297.
On May 22, 2007, at 11:54 AM, Joe Lambert wrote:
> Hi all,
>
> We just recently finished the installation of a new Gasbench to
> our
> Delta Plus. We'll spend most of our time measuring carbonates. I
> was wondering how other labs are handling the cleaning of used
> exetainers. I see that Thermo gives guidelines for cleaning in their
> manual; however, maybe someone has developed a faster/easier method?
>
> Thermo also recommends that even new unused exetainers should be
> cleaned before measuring carbonates. Has anyone experienced problems
> if they take the risk and use unwashed new exetainers?
>
> Thanks,
>
> Joe
>
> W. Joe Lambert
> Research Scientist
> Alabama Stable Isotope Laboratory
> University of Alabama
> Geological Sciences
> 202 Bevill Building
> 7th Avenue
> P.O. Box 870338
> Tuscaloosa, AL 35487-0338
> Phone: (205) 348-4404
> Fax: (205) 348-0818
> email: [log in to unmask]
> Visit our web-site: http:www.geo.ua.edu/asil
>
>
--
*************************************************************
Steve Nelson
Professor
Dept. of Geological Sciences
S-389 ESC
Brigham Young University
Provo, UT 84602
801-422-8688
"Guns don't kill people, Dick Cheney kills people."
George W. Bush: "Decider in Chief"
"Iraq burns. We shop." Bob Herbert
**************************************************************
Disclaimer for the feeble-minded: It should be painfully obvious, but
the identification of my affiliation with Brigham Young University does
not imply that the University endorses any political or otherwise
partisan content of this message.
|
