David,

For question #2, try beet sugar. A 4-pound bag will last some time, and
granulated sugar is fairly stable.

Glen




                      David Mrofka
                      <david.mrofka@EMA        To:       [log in to unmask]
                      IL.UCR.EDU>              cc:
                      Sent by: Stable          Subject:  Prism II Software and Organic Carbon Standard
                      Isotope
                      Geochemistry
                      <[log in to unmask]
                      UVM.EDU>


                      04/17/04 02:19 AM
                      Please respond to
                      Stable Isotope
                      Geochemistry






I have two questions and would appreciate any advice...

1. We have a Prism II running the original DOS-based software and are
interested in updated software that can run on a newer computer.  I
searched the archives but there has not been much on this since Y2K.  Any
advice on updated software and who to get it from?

2. We are also looking for bulk solid carbon to calibrate with NBS-22 and
use as our lab std for organic carbon measurements.  Of course we are
looking for something with lighter delta carbon values (-25 to -35 ?)...any
advice on suppliers?

Thank you,

David Mrofka
Earth Sciences
University of California Riverside