where to buy fifa coins??

0 -1 2
answers votes views
my friends recommend me a legit site to buy ,that is http://www.fifa1314.com?-affi-9574 it offer coupon code 6%( Fifa1...
Posted: Vivi yang 1 13 hours ago

How to integrate CDCl3 (d-chloroform) peak area which is overlapped with other peaks?

1 0 239
answers votes views
Hi All, I would like to get suggestion about how to integrate the peak area of CDCl3 which is overlapped with other pea...
Posted: Jiping Yang 1 / Updated: Anne Baudouin 26 Jul 19 at 21:21

Air dryer system issues

2 0 126
answers votes views
We have a pressure-swing adsorption air dryer that is identical to the one shown here on the NMR wiki (Balston 75-20, cu...
Posted: slongwell 3 / Updated: Jerry Hirschinger 189 5 hours ago

simple stddiff parameters

1 0 107
answers votes views
Hi, I'm working on a bruker avance 400 spectrometer and using topspin version 1.3 software. I want to get a std-nmr (sat...
Updated: nfromdicle 1 Jul 12 at 05:56

Watergate spikes around solvent

0 0 79
answers votes views
Hi, When I use my watergate I get symmetrical spikes around the residual water signal. Is there a way of minimizing the...
Posted: gravatar 3 / Updated: Jerry Hirschinger 189 Jul 15 at 11:52

167ppm CH of a indole

1 0 101
answers votes views
I have a proton value at 8.07ppm and carbon 167ppm correlate to a CH proton I think it's a proton at 3 position of a ind...
Posted: din 1 / Updated: VVK 51 Jul 08 at 04:34

how do you use topshim 3d in topspin?

2 0 124
answers votes views
Hi, when I try to use topshim 3d i get an error message saying that it can only be used for 1H although 1H is what I use...
Posted: gravatar 3 / Updated: Arkadiusz Leniak 26 Jul 07 at 07:39

Translating Varian to Bruker, "phase=1,2"

1 0 150
answers votes views
I'm trying to translate a Varian pulse sequence into a Bruker pulse program. For the Varian Inova sequence with the par...
Posted: Craig Grimmer 21 / Updated: vltr 1 Jul 14 at 13:17

INADEQUATE EXPERIMENT WITH BBI PROBE?

4 0 153
answers votes views
Is it possible to obtain this experiment with a BBI 400 MHz probe? All the tries I have made they have been unsuccessful...
Posted: Gohuma1 1 / Updated: Arkadiusz Leniak 26 Jun 26 at 19:35

Software to simulate pulse sequences

1 0 171
answers votes views
Hi, I'm interested in software for windows or linux that simulate the effect of pulses, delay AND gradients using the pr...
Posted: marcs 11 / Updated: Bharathwaj 112 Jun 22 at 08:15

Topspin3.2 deconvolution, border peaks are cutted off

1 0 112
answers votes views
Greetings, I've some annoying issue with Topspin and deconvolution. No matter what I'm trying to do, border peaks are a...
Posted: Arkadiusz Leniak 26 / Updated: Ulrich Haunz 99 Jun 16 at 07:48

gradients for 195Pt

1 0 129
answers votes views
Dear colleagues! tell me please how to calculate the gradients for carrying out 2D experiment with 195Pt (HMBC, HSQC)? ...
Posted: OLEL 1 / Updated: VVK 51 Jun 14 at 22:20

How can you read a FID dile with topspin?

2 0 144
answers votes views
Hi, I found a spectrum I'm interested in on the hmdb database, say for example at the end of this page http://www.hmdb....
Posted: gravatar 3 / Updated: Arkadiusz Leniak 26 Jun 14 at 02:00

Processing of spectra in Bruker Topspin

0 0 118
answers votes views
Can anyone suggest important parameters need to be optimized for 3DNMR data processing and correct phasing of cross pea...
Updated: Arun Gupta 11 Jun 08 at 03:04

TopSpin: 3D experiment with vc list

2 0 186
answers votes views
Question about how to make a 3D experiment in which one of the dimensions is a variable counter (vc) list. I'm using Top...
Updated: DaanMR 1 Jun 05 at 08:26

why is the number of scans in watergate a multiple of 8?

1 0 303
answers votes views
Hi, In the p3919gp the number of scans is a multiple of 8 which makes optimizing this experiment a bit of a pain. can a...
Posted: gravatar 3 / Updated: Arkadiusz Leniak 26 Jun 07 at 00:42

Topspin 3.2.1 - 1D TOCSY in with differing mixing times

4 1 244
answers votes views
Hello, I work a lot with compounds containing numerous carbohydrate groups. Therefore I use frequently 1D-TOCSY experim...
Posted: zablociak 11 / Updated: Alain Pagelot 1 Jun 10 at 02:38

19F full range homodecoupling

3 0 245
answers votes views
Greetings, this is my first question in this wiki :) I wonder if there's possibility to obtain full homo decoupled spe...
Updated: Arkadiusz Leniak 26 Jun 16 at 00:14

hard pulse frequency

0 0 133
answers votes views
Hello, anyone knows how to change the frequency from one hard pulse to another in a simple 2 pulses sequence at the mini...
Posted: German Farrher 1 Jun 02 at 07:21

real part or magnitude?

2 0 226
answers votes views
Hello, I'm a NMR newbie working on Bruker 300MHz and my problem may sound silly to some of you, but I don't want to make...
Posted: safandula 1 / Updated: Clemens Anklin 396 Jun 04 at 19:40

Buffer systems for protein pH titrations

0 0 127
answers votes views
Hi All, I am trying to design a 1D 31P pH titration experiment for a protein. I have been trying to identify a good buf...
Posted: K Sippel 1 May 20 at 10:20

Chemical shift

1 0 223
answers votes views
Hi there, I am seeing four signals at equal height between -0.6 and 0.5 PPM of a 1H NMR sample in dmso-d6. The reaction ...
Posted: TBS 1 / Updated: Eugene DeRose 41 May 23 at 13:02

simulating 2D-NOESY spectrum from structural model

1 0 321
answers votes views
Hello everyone Our research group planning to study metal-ion induced structural transition using NMR. We are new to thi...
Posted: karthik 1 / Updated: Thomas 1 May 19 at 13:03

bruker s1 sortier

0 0 161
answers votes views
Hello, I can't get results, as unknown error occures data/results.csv I'd restarted spectrometr several time, but the s...
Posted: Konservator 1 / Updated: Jerry Hirschinger 189 May 06 at 07:37

extract error bars from sparky S/N or deviation or both

0 0 970
answers votes views
Dear NMR wiki community, I have recorded 24 sequential 15N HSQC spectra, in an H/D exchange experiment and now, I am ha...
Updated: Maryam 1 Apr 14 at 12:57

RGA setting too high on Bruker Avance 300

2 0 1k
answers votes views
I'm using Bruker Avance 300 spectrometer (Topspin processing software). When using "RGA" GR value jumps up to 3000 and m...
Posted: Avance300 1 / Updated: Ulrich Haunz 99 May 05 at 02:20

Signal intensity affected by long-range proton coupling?

1 0 1k
answers votes views
Hi, I'm looking for a theoretical explanation for the effect of long-range (proton) couplings on the signal intensity of...
Updated: doodlebugs 1 Apr 14 at 06:45

195Pt experiment setup help needed

4 0 1k
answers votes views
We just bought a new console (with Topspin 3.2)for our Bruker 400 and noticed that not all experiments that we previousl...
Posted: IA 1 / Updated: Kirk Marat 663 Apr 04 at 13:48

simulate 3D NOESY

1 0 1k
answers votes views
Hello everyone I am using NMRPipe to simulate 3D, noise-free NOESY spectra (13C or 15N resolved) from peak lists, but I...
Updated: canavanin 17 Mar 19 at 05:17

Total t1 evolution time, TROSY, PRE distance calculation

0 0 1k
answers votes views
Hi all, This is my first post to the forum and I am admittedly new to the field of protein NMR. I appreciate your patie...
Posted: Logan 1 Mar 11 at 09:04

VNMRJ Macro - wait until completion of first experiment

1 0 473
answers votes views
I am relatively new to VNMRJ, and am trying to write a macro that executes an array in experiment 1, then, once finished...
Posted: Tazmusica 1 / Updated: Bharathwaj 112 Mar 14 at 07:43

Diagnosing 1D selective NOE issues

4 0 1k
answers votes views
I'm trying to diagnose a possible issue performing a selective 1D NOE (selnogp) on a Bruker Avance II 500Mhz with TopSpi...
Updated: kyleabeauchamp 1 Mar 22 at 09:48

integration 2d noesy

0 0 691
answers votes views
I will appreciate if somebody write me how to integrate 2D NOESY spectrum in TopSpin 2.1 or 2.5! Step by step, please! I...
Posted: gugica 1 Feb 18 at 03:55

Very simple NMR question wrt resonance frequency calculation

6 0 1k
answers votes views
Hi guys, I'm stuck in attempting this question and need some help understanding how to answer it. Q.) The chemical shif...
Posted: Will Whitehouse 1 / Updated: SankarampadiAravamudhan 91 Apr 02 at 00:25

J scaling factor

1 0 868
answers votes views
Hello How to write a pulse program with J-scaling factor? When I should introduce the scaling factor? For example, how...
Posted: ghNMR 11 / Updated: Nikolay Boev 41 Feb 13 at 04:45

selective noesy

5 0 973
answers votes views
Hi, I have question for you who have Bruker instruments! On 300 MHz I worked on selective noesy pulse sequence (selnogp)...
Posted: gugica 1 / Updated: Pete Gierth 326 Feb 13 at 14:58

T2 relaxation (CPMG) measurement of 13C high resolution spectra

1 0 1k
answers votes views
Hi all, my question is how to perform a T2 measurement of 13C liquid NMR spectra in BRUKER AVIII ? What sequence to use?...
Updated: TiagoB 5 Feb 19 at 04:23

Status of Wiki

1 0 921
answers votes views
I'm just wondering what the status is of the wiki portion of this site. I receive error messages when trying to edit a ...
Posted: Kirk Marat 663 / Updated: Ulrich Haunz 99 Feb 10 at 01:38

Running a 13C{19F} spectrum on a Bruker Instrument?

1 0 970
answers votes views
My apologies in advance for the very "beginner" nature of my question : ) We are interested in examining a carbon spect...
Posted: nmrbeginner 1 / Updated: Charlie Fry 91 Jan 23 at 07:32

how to read a file generated by SPARTA+

0 0 216
answers votes views
i want to ask how to analyze a pred. file generated as a result of running SPARTA+ shift prediction software . ...
Posted: prashantiitb 1 Jan 20 at 04:34

2D ROESY-NMR with ~0 peak intensity

1 0 571
answers votes views
I have been trying to elucidate the 3D structure of oxidized glutathione (M.Wt= 612.63 g/mol) with the help of roesy dis...
Posted: Raj 1 / Updated: marcs 11 Jan 20 at 22:46

Topspin 3.2.5 queue experiment

3 0 561
answers votes views
Does anyone know how to make Topspin to queue experiments? In my recently installed Topspin somehow the queue function i...
Posted: shark 1 / Updated: Arkadiusz Leniak 26 Jun 05 at 05:07

spin lock 1H spectrum

2 0 525
answers votes views
Please, if somebody wants to help me?! I need to get 1H spectrum with spin lock pulse on Bruker AV 600 instrument. Which...
Updated: gugica 1 Jan 17 at 05:06

using chenomx and missing peaks

1 0 471
answers votes views
hello, I am trying to identify and quantify of metabolites present in semen with spectra obtained from 400 MHz NMR using...
Posted: Reza mohammadi 1 / Updated: Ulrich Haunz 99 Feb 10 at 01:36

residual dipolar coupling

1 0 388
answers votes views
Hi, which aminoacid is best for calibrating acrylamide gel percentage for RDC? ...
Posted: shine a 1 / Updated: dejian 1 Dec 29 '13 at 13:53

can topspin 3.2 window version open broker fid file?

3 0 786
answers votes views
I installed the Topspin 3.2 pl 3 on windows 7, but when I am trying to open my NMR data it can only show process data fi...
Posted: shark 1 / Updated: John Hollerton 96 Jan 23 at 09:36

1-2 yrs funding to complete Ph.D. in Chemistry (Ionophores NMR Molecular Modelling)

0 0 852
answers votes views
Looking for 1-2 yrs funding to complete my Ph.D. in Chemistry. Thesis: 'A Study of Conformational Analysis and Molecular...
Posted: craigofw 1 Dec 18 '13 at 08:15

error while running humpcal

1 0 553
answers votes views
Dear all, My new avance 400 is driving me crazy at the moment ! Shims are awful although I tried the topshim 3D on sucro...
Updated: univp5 1 Dec 20 '13 at 02:44

How to calibrate pulse length for urine samples?

2 0 708
answers votes views
I recently read an article about executing a WET sequence for water suppression in urine samples. The 90°excitation puls...
Updated: brighman 1 Dec 26 '13 at 18:10

"Satellite" peaks in polypeptide HSQC

1 0 512
answers votes views
In the decoupled HSQC of a polypetide I see two small peaks right and left to the delta arginine signal. These peaks hav...
Posted: PQdotL 1 / Updated: Pete Gierth 326 Nov 29 '13 at 00:45
555

questions

Newest questions are shown first.

Tags

× 53
× 28
× 25
× 20
× 17
× 17
× 16
× 12
× 11
× 9
× 9
× 8
× 8
× 8
× 7
× 7
× 7
× 6
× 6
× 6
× 6
× 6
× 6
× 5
× 5
× 5
× 5
× 5
× 5
× 4
× 4
× 4
× 4
× 4
× 4
× 4
× 4
× 3
× 3
× 3
× 3
× 3
× 3
× 3
× 2
× 2
× 2
× 2
× 2
× 2
× 2
× 2
× 2
× 2
× 2
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
× 1
posts per page103050

powered by CNPROG