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Hi All,

Anybody have alternate suppliers for the 998 alumina tubes for the TC/EA (the 47 cm length), besides Vesuvius-McDanel?  I've been dealing with them for over 20 years, and they have unfortunately gotten too big for little people like myself to have satisfactory business dealings with.  I would like to try someone else.
Cheers,
Jim
Dr. James P. Greenwood
Assistant Professor
Dept. of Earth & Environmental Sciences
Wesleyan University


From: Robert Panetta <[log in to unmask]<mailto:[log in to unmask]>>
Reply-To: Stable Isotope Geochemistry <[log in to unmask]<mailto:[log in to unmask]>>
Date: Saturday, March 21, 2015 12:09 PM
To: "[log in to unmask]<mailto:[log in to unmask]>" <[log in to unmask]<mailto:[log in to unmask]>>
Subject: [ISOGEOCHEM] SIA of chemicals

Hi Brian,

There was a recent discussion on some complications in dealing with nitrates that you might want to look at for good measure (search the archives for the latest subject heading IAEA-N-3).

I can't imagine dicyandiamide posing problems provided enough O2, but is there any reason to measure the K3PO4 for C/N? Or are you looking at the oxygen isotopes of the PO4?

Good luck,
Robert

Robert J. Panetta, Ph.D.
R&D Manager
Isoprime, Ltd.

On Friday, March 20, 2015, Brian Hayden <[log in to unmask]<javascript:_e(%7B%7D,'cvml',[log in to unmask]);>> wrote:
Hi all,

We are analysing samples (C and N of fish and invertebrates) from a controlled study where NaNO3, Kh2PO4 and dicyandiamide (C2H2N4) were added as different treatments. We are thinking of analysing the actual chemicals added to the systems to get ‘baseline’ values for each treatment. We haven’t run these in the past and would like to hear from someone who has before subjecting our instruments to weird and unusal chemicals. If anyone has experience analyzing these chemicals or can think of any potential issues when doing so please let me know.

Best,

Brian


Dr. Brian Hayden

Science Manager
Stable Isotope in Nature Laboratory (SINLAB<http://www.unb.ca/research/institutes/cri/sinlab/>)

Canadian Rivers Institute
Department of Biology
University of New Brunswick
Fredericton, NB
E3B 5A3, Canada

Tel: +1 (506) 451-6892
Skype: brian.hayden.work
Twitter: @DrHaydo<https://twitter.com/DrHaydo>
Web: www.brianhayden.org<http://www.brianhayden.org/>

Social Media Editor for The FSBI, an International Society for Fish Biology, find us on Twitter @TheFSBI<https://twitter.com/TheFSBI> and Facebook https://www.facebook.com/TheFSBI



--
Robert