>Date: Thu, 19 Apr 2007 12:54:38 -0500
>From: Shawn Carter <scarter_at_ou.edu>
>Subject:
>To: susan Alguindigue <SusanA_at_chemdept.chem.ou.edu>
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>Original-recipient: rfc822;SusanA_at_ou.edu
>
>Susan:
>
>We were hoping you could post the following question on one of the
>NMR boards for us.
>
>We are performing a series of kinetics experiments with the NMR that
>involve increasing exponential signals. According to page 138 of
>the VnmrJ Liquids NMR User Guide we can use the software to evaluate
>the data for us. According to the guide, the software uses the
>following equation:
>
>
>I=A1*EXP(-T/TAU)+A3
>
>Are questions are:
>
>What are A1 and A3?
>
>How does the software find TAU?
>If we analyze 119 spectrum of an array experiment, we seem to be
>getting surprisingly different answers (using the kinetics program
>built into the Varian software) than if we do a full analysis of 120
>spectrum. Seemingly, to us, there is not much difference in the
>120th spectrum. At least not enough to change our answer.
>
>We appreciate the help,
>
>Shawn
>************************************************
>Shawn M. Carter, Ph.D.
>Dept. of Chemistry and Biochemistry
>University of Oklahoma
>620 Parrington Oval
>Norman, OK 73019
> Tel: 405-325-2378
>Fax: 405-325-6111
>email: <mailto:scarter_at_ou.edu>scarter_at_ou.edu
>************************************************
>
>
Susan L. Nimmo, PhD
NMR Facility Manager
Department of Chemistry and Biochemistry
University of Oklahoma
620 Parrington Oval, Room 208
Norman, OK 73019
Office (voice): (405) 325-0677
FAX: (405) 325-6111
LAB: (405) 325-2843
CELL:(405) 627-7044
Received on Fri Apr 20 2007 - 18:20:53 MST