Where to obtain 8% off runescape gold for a Razer Gaming Laptop Until Dec.5?

0 0 26
answers votes views
It's the most wonderful time of 2016. To prove this point, Jagex has got a brand-spanking new gaming laptop for all of y...
Posted: nash john 1 yesterday

rousy vs nunes live free

0 0 195
answers votes views
rousy vs nunes live free Nearly instantly after Dana White verified that Amanda Nunes and Ronda Rousey will headline UFC...
Posted: saki lele 1 Dec 07 at 02:51

Effect of components of B1 field

0 0 51
answers votes views
Considering the B0 field is along Z direction if and B1 is applied in the XY plane. What will be the effect on SNR of an...
Posted: Divine Demon 1 Dec 06 at 04:05

Protein Backbone assignment

1 0 638
answers votes views
There are many Software Tools available for that purpose. What are the problems there (if there are some)? Do you think...
Updated: FAS 1 2 days ago

Backbone assignment with NMRPipe

1 0 117
answers votes views
Hi I'm new to nmrPipe and I have a question about where to start assigning the backbone resonances for a recombinant pro...
Posted: David Onofrei 1 / Updated: Woonghee 1 Nov 28 at 16:37

How to implement receiver phase toggle in XWINNMR?

1 0 732
answers votes views
How does one change the receiver phase DURING stroboscopic acquisition in XWINNMR? The "ipp" commands do not seem to wor...
Updated: forza 1 Nov 10 at 10:22

Lock problem on Bruker Avance 600 MHz

0 0 110
answers votes views
After a energy failure (cryoprobe started to warm up) I cannot establish lock (similar to http://qa.nmrwiki.org/question...
Posted: Fabio de Moraes 1 Oct 31 at 05:58

NOE and strength of dipolar coupling

1 0 134
answers votes views
Is NOE observed even if molecular motion averages out the dipolar coupling between two spins. ...
Posted: visi 1 / Updated: Kirk Marat 711 Oct 26 at 15:01

qNMR calculation

1 0 1k
answers votes views
I am currently working on the qNMR concentration of compounds X in commercial samples: The following is my scenario I...
Posted: KONG KA LING 1 / Updated: Ulrich Haunz 210 Oct 13 at 06:38

Vnmr spectrum file

1 0 802
answers votes views
Hi, I am working on software for NMR assignment and one of the options to implement is import Varian spectra into our ap...
Posted: _mtd_ 1 / Updated: Ulrich Haunz 210 Sep 19 at 06:59

unresolved signals

0 0 690
answers votes views
Hi all We know that H NMR of paramagnetic sample or complex, is very broad with a bad signal to noise ratio. Do you...
Posted: satar 3 / Updated: Ulrich Haunz 210 Sep 19 at 06:51

FILTERATION OF SAMPLE

1 0 1k
answers votes views
Hello all, can i filter sample by passing the sample through a cotton? I think may be some of compound in cotton dis...
Posted: satar 3 / Updated: Ulrich Haunz 210 Sep 12 at 05:56

2D-NOESY for macromolecules

0 0 1k
answers votes views
Hi, NOESY is very interesting method bet I have a problem. We are working with polymethacryles (MW about 20 000-30 000 ...
Posted: AnnaLT 1 Aug 24 at 22:32

What do -di and -verb do?

1 0 265
answers votes views
Hi all, New to NMRPipe. I'm trying to understand what the arguments -di and -verb to, e.g. in |nmrPipe -fn PS -p0 66.0...
Posted: Lena 1 / Updated: Kirk Marat 711 Sep 06 at 11:23

HNCO projection of the 1H-15N plane

1 0 261
answers votes views
Dear all, If I make the projection of the 1H -15N plane from the HNCO and compare it to the HSQC of the same sample, the...
Posted: Angus 1 / Updated: Kirk Marat 711 Sep 06 at 11:30

Relaxation rate of bulk (pure) water at high frequencies

1 0 294
answers votes views
Hi all, Does anyone know if NMR relaxation rates of bulk (pure) water has been measured experimentally at several hundr...
Posted: Gyro 1 / Updated: Jerry Hirschinger 199 Jul 21 at 05:08

When to use 'BLKGRAD' and 'UNBLKGRAD' in a bruker pulse sequence ?

1 0 510
answers votes views
I'm trying to modify some pulse sequence on bruker 400, and is confused with the use of 'blkgrad' and 'unblkgrad'; and ,...
Posted: Yuan yaping 1 / Updated: Kirk Marat 711 Jun 14 at 11:44

Difference between H 50 W and X 100 W Amplifiers

2 0 417
answers votes views
We have been trying to get a 2D H-F experiment to work using the X 100 W amplifier on our Bruker NMR, but can't get it t...
Posted: ysuh 1 / Updated: Kirk Marat 711 Jun 14 at 11:55

2rr to ASCII

2 0 705
answers votes views
Hi All, I was wondering if there is a simple way for converting 2rr to ASCII format (with Origin?). I don't know if my ...
Posted: m 1 / Updated: Kirk Marat 711 Sep 28 at 08:07

method validation in nmr

1 0 323
answers votes views
please tell me whether there are method validation in nmr ...
Posted: harish ravuri 1 / Updated: Ulrich Haunz 210 May 04 at 01:31

Shimming for liquid stateNMR

1 0 365
answers votes views
Dear All, What should be the intesnities of spinning sides bands in liquid state NMR?. THank YOu ...
Posted: Mani 1 / Updated: Clemens Anklin 416 Nov 27 '15 at 11:26

Amplitude problems when comparing 'popt' experiments in Bruker (Topspin)

0 0 270
answers votes views
Hi all, My question is about the Multiple Display (.md) function on TopSpin (Bruker AVIII). I did some 'popt' ( paramete...
Posted: TiagoB1 1 Nov 11 '15 at 03:40

1H 1D NMR data Normalization in Topspin.

1 0 347
answers votes views
I have performed a series of 1H 1D experiments with different concentration of peptide and accordingly different numbers...
Posted: RBT 1 / Updated: Pete Gierth 401 Nov 23 '15 at 11:14

Measurement of 13C enrichment

1 0 376
answers votes views
I am wondering, is it possible for me to measure 13C enrichment in my compound by using 1D 13C NMR spectrum? Id ran stan...
Posted: shuhaila 1 / Updated: Clemens Anklin 416 Oct 22 '15 at 14:04

NUS nmrPipe

0 0 252
answers votes views
Hi, I have recently written a 2D-HSQC pulse program (Echo-AntiEcho detection) which records non-uniformly sampled data ...
Updated: Zolo 1 Oct 20 '15 at 13:53

reversed NOESY/EXSY peaks

1 0 444
answers votes views
We have a case of a molecule that has two slowly exchanging conformations. In the NOESY experiment we see cross-relaxing...
Posted: foxx 1 / Updated: Pete Gierth 401 Nov 23 '15 at 11:26

probe temperature

0 0 200
answers votes views
Hi, If the probe temperature increases inadvertently What should be done to reduce the temperature. Thank you ...
Posted: sattar saberi 1 Oct 11 '15 at 11:30

Why does Lift not work?

0 0 367
answers votes views
Dear all, we have newly installed Bruker Ascend 600 with Sample Jet. Last month, we had a compressor error and NMR was o...
Updated: aaaeee 1 Oct 01 '15 at 08:20

with which program I can turn FID signal into sound?

0 0 118
answers votes views
Hi dear colleagues that was my question, thank you in advance! ...
Posted: IT 1 Sep 18 '15 at 04:01

Topspin AU program for sequencial acquisition of three different experiments for 2 hours

2 0 341
answers votes views
Dear all, I am trying to write an AU program for the acquisition of three different measurements in a sequence for 2 ho...
Updated: Umayal Rakesh 1 Sep 20 '15 at 20:19

prob not found

0 0 139
answers votes views
Hi Dear recently i see error the prob not found i do command "edhead" and then atmm and after that the problem be solved...
Posted: sattar saberi 1 Sep 15 '15 at 10:28

Splitting of amide peaks in indirect proton dimension of a 3D 15N Noesy spectra

0 0 329
answers votes views
Hello, I am trying to record 3D 15N Noesy-hsqc experiment on 15N labelled protein (50 a.a). The mixing time is 120 m...
Posted: Janeka 1 Aug 31 '15 at 10:09

NMRLab or matNMR for 1D nmr spectra processing?

1 0 584
answers votes views
Hi, I used to use spinworks to process simple 1D NMR (because it was easy and I didn't felt like paying for topspin). B...
Posted: joanap 1 / Updated: Kirk Marat 711 Sep 27 at 07:21

C-C coupling constants measurement

0 0 353
answers votes views
Hello, I'm trying to set up an experiment to measure C-C coupling constants: 1. Do I understand it right that the standa...
Posted: Olga Mukhina 1 Aug 26 '15 at 13:12

How to edit format of Variables in NMRPipe?

0 0 388
answers votes views
Dear all, I would like to change the number of decimal place for the X and Y ppm values in nmrdraw (peak detection). The...
Posted: Jerry J 1 Aug 18 '15 at 14:37

Partially Parallel Imaging

0 0 426
answers votes views
I am running Paravision 4.0 from Topsin 1.5 with one receiver coil. I would like to increase the PPI acceleration factor...
Posted: adam 1 Jul 21 '15 at 05:18

Volume Integration 2D spectra

0 0 419
answers votes views
Hi, Can anyone enlighten me on the best way to calculate volume integration on 2D spectra (Bruker, Topspin). I have tri...
Posted: doodlebugs 1 Jul 06 '15 at 07:54

T2 relaxation in solids

0 0 276
answers votes views
Hi, While the T2 relaxation in liquids is connected with motional correlation time (tauc), what's the source of T2 rela...
Posted: Frey 61 Jun 14 '15 at 20:01

recovery of solvent NMR

1 0 544
answers votes views
Hi Do you confirm recovery of NMR solvents? Thanks ...
Updated: sattar saberi 1 Jun 14 '15 at 05:48

15N-proline site specific labeling

0 0 293
answers votes views
Can anyone share a protocol for site specific 15N-proline labeling of proteins? Would I need to supplement the media wit...
Posted: eliasjf 1 May 29 '15 at 11:44

Calculate the resonance frequency of hydrogen nucleus in an applied field of 2.4 T if ßN = 5.05 x 10-27 JT-1 and g = 5.585.

0 0 811
answers votes views
Calculate the resonance frequency of hydrogen nucleus in an applied field of 2.4 T if ßN = 5.05 x 10-27 JT-1 and g = 5.5...
Posted: mala ramanji 1 May 24 '15 at 06:24

What do you call this sequence

0 0 485
answers votes views
I'm looking for the name of this sequence. It's a bit like the 1H portion of INEPT, but its purpose is not to transfer ...
Updated: clemistry 1 May 15 '15 at 10:36

Bruker phase image recon

0 0 1k
answers votes views
Hi all- I'm acquiring 1-2s/dynamic, single-slice gradient echo image series over a period of 10 minutes or so. By defau...
Posted: Nicholas E 11 Apr 17 '15 at 08:35

dept nuclear magnetic resonance

1 0 730
answers votes views
what it the difference between c13 and dept nmr? ...
Posted: dereje sharew 1 / Updated: gravatar 83 Apr 28 '15 at 02:51

Bruker AV500 TOPSHIM error

1 0 793
answers votes views
Hi, I'm having a problem with topshim on Bruker AV 500 using topspin 2.1. it finishes with error (topshim: FieldMap - no...
Posted: jrlopez 1 / Updated: Jim Lin 1 Apr 14 '15 at 06:23

nmr phenylethylamine

2 0 1k
answers votes views
hello...i know only the basics on nmr and need some help :i need H-NMR help with phenylethylamine Phe-CH2-CH2-NH-R - how...
Posted: ann choroshun 1 / Updated: Jim Lin 1 Apr 09 '15 at 07:59

Distorted/antiphase signals when doing Dosy

5 0 793
answers votes views
Hello, I am running Dosy experiment using ledbpgp2s sequence. I am getting sort of signal distortions. I tried the solu...
Posted: Umayal Rakesh 1 / Updated: gravatar 83 Jun 08 '15 at 03:44

31P-31P COSY

1 0 878
answers votes views
I like to run a 31P-31P COSY experiment to determine whether there is coupling between 1R-31P-CH2-31P-X in my molecule. ...
Updated: Jim Lin 1 Apr 09 '15 at 07:54

splitting QCPMG echo train

0 0 338
answers votes views
Hi all, I'm running qcpmg (qcpmgaq), using bruker topspin3. Does anyone have a suggestion how to split the echos train? ...
Posted: shon roni 1 Mar 23 '15 at 04:07

How to calcualte eoors in ppm from Hz of Hsqc data?

1 0 579
answers votes views
Hi all, I want to calculate error in ppm from my Hsqc data. My spectrometer yields X1axis, Y1Axis, DX1, DY1, X1ppm, and ...
Posted: ick lad 1 / Updated: Arkadiusz Leniak 238 Mar 17 '15 at 02:10
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