Re: Invers 13C-decoupling

From: Peter Ziegler (peter.ziegler@NMR.BRUKER.COM)
Date: Fri May 19 2000 - 05:46:00 PDT


                Hi Joerg,

        yes, indeed you need two filters, a low pass and a 2H stop between
the preamp and the probe (C13 channel) . On the proton channel you
need a High pass filter. It would not hurt to but a 2H pass filter
into the lock channel.
        That should do the trick.
                Greetings,
                                Peter Ziegler

> From: Joerg.Christ@org.Chemie.uni-giessen.de
> To: bruker-users-mail@bloch.cchem.berkeley.edu
> Subject: Invers 13C-decoupling
> Priority: normal
> Date: Fri, 19 May 2000 02:25:47 -0400

> Hello BUMmers,
>
> we have an AM400WB and an AC200 with ASPECT3000
> DISR94/DISB94 and DUAL-Probe.
>
> I want to make good HMQCs with 13C-decoupling. I can make a
> good HMQC with BIRD-filter on CSE. But I have many problems
> with the 13C-decoupling. The Lock breaks down and in a Invers 1H
> are many artefacts. Must i have any filter ? Who can help me ?
>
> Joerg
>
>
> **************************************************
> Joerg Christ
> Institut fuer Organische Chemie
> der Justus-Liebig-Universitaet Giessen
> Heinrich Buff-Ring 58
> D-35392 Giessen
> Telefon +49(0)641/99-34382
> Telefax +49(0)641/99-34309
> Joerg.Christ@org.Chemie.uni-giessen.de
> http://www.uni-giessen.de/fb14/oc/nmr
> **************************************************
>
>
Peter Ziegler Phone: (978) 667-9580 X133
Applications Engineer Fax: (978) 667-2955
Bruker Instruments INC Email: peter.ziegler@nmr.bruker.com
            Home Page http://www.bruker.com



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