Re: AMMRL: Water suppression 180o out of phase

From: Robert Hanson <hansonr_at_stolaf.edu>
Date: Thu, 9 Nov 2017 15:31:32 -0600

two examples of the problem.

https://chemapps.stolaf.edu/temp/chem-synthesis-c-team5_nov07-2017_1027310_1.jdx
https://chemapps.stolaf.edu/temp/chem-synthesis-c-team10_nov07-2017_1027610_1.jdx

So clearly we need to do something better for our water suppression.

Bob

On Wed, Nov 8, 2017 at 12:42 PM, Robert Hanson <hansonr_at_stolaf.edu> wrote:

> For 13 years we have had no problem with water suppression or any other
> pulse sequence with phasing, but recently, after upgrading to TopSpin 3.5
> and a Bruker AV3HD-400 probe on a nanobay, we are seeing water suppression
> spectra coming up exactly 180o out of phase.
>
> The method we are using for water suppression is WATERSUP.
> Can't remember the details.
>
> Ideas other than "just phase it manually"?
>
> Bob Hanson
>
> --
> Robert M. Hanson
> Professor of Chemistry
> St. Olaf College
> Northfield, MN
> http://www.stolaf.edu/people/hansonr
>
>
> If nature does not answer first what we want,
> it is better to take what answer we get.
>
> -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
>
>


-- 
Robert M. Hanson
Professor of Chemistry
St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr
If nature does not answer first what we want,
it is better to take what answer we get.
-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900
Received on Thu Nov 09 2017 - 11:33:42 MST

This archive was generated by hypermail 2.4.0 : Tue Jun 20 2023 - 14:37:03 MST