Amplifier Error

1 0 4k
answers votes views
Hi All, I am worikng with 500Mhz Bruker. Recently 3rd channel is installed in my institute when i run 3D HNCA experime...
Posted: saship21 21 / Updated: sekhar Talluri 621 Oct 21 '12 at 07:05

File with description of parameters

1 0 4k
answers votes views
Hi, comrades! We use the linux version of TopSpin 2.1 as a software for AVANCE II Bruker 400 MHz. As I found parameters ...
Updated: Alexander Abakumov 11 Nov 19 '12 at 09:16

NMRPipe commands

1 0 4k
answers votes views
I would like to know what is the command being used to read the parameter files of bruker when 'Read Parameter' button i...
Posted: Ved Roy 1 / Updated: TJCarruthers 31 Mar 24 '13 at 18:18

Protein-Protein Interactions

1 0 3k
answers votes views
Hi i'm a newbie in NMR and I have 2 proteins, A protein is about 12KDa, B protein is about 45 KDa,i know that A protein ...
Posted: Guch 1 / Updated: Justin Frank 1 Jun 27 '16 at 22:46

Lock 'lost' on Bruker 400MHz NMR

1 1 10667
answers votes views
I had just finished refilling the nitrogen and powering up the NMR after the holiday shutdown and went through the norma...
Posted: Norman Chu 11 / Updated: Roja 26 Jan 07 '13 at 16:11

how to calculate second moment from fid data

1 0 4k
answers votes views
I want to get second moment from fid data. Does anyone know how to do it or is there any free computer program solving s...
Updated: Minghui Zhang 3 Jan 08 '13 at 06:49

What is the meaning behind coalescense of unequal population exchange

1 0 3k
answers votes views
Is is an average k? And how could we extract the k of forward and backward reaction? ...
Posted: Kiu Chor Sham 11 / Updated: Dmitry Mainichev 31 Jan 16 '13 at 19:53

Relaxation time of adenine H2

1 0 3k
answers votes views
Could anyone tell the reason why adenine h2 has a longer T1 and T2 than the other prontons in nucleic acid? It would be ...
Updated: yuan 1 Jan 13 '13 at 22:36

Error in intergration of NMR peaks

1 0 7k
answers votes views
I have a question regarding the quantification of the error in peak integrals due to noise. I have a series of spectra ...
Posted: Daan 11 / Updated: Jerry Hirschinger 199 Feb 18 '13 at 13:23

NOE help, pulse shapes, pbox

1 0 4k
answers votes views
Ok, let's face it. I don't know what I'm doing. I'm a separations chemist running our NMR. sigh. Anyway, I have been co...
Posted: CaymanDave 11 / Updated: Ulrich Haunz 210 Feb 21 '13 at 01:41

Tilted counters in 2D spectrum

1 0 3k
answers votes views
Hi, I recently run 195Pt-1H HMBC from one platinum compound with phosphorous and methyl group, unfortunately the counte...
Posted: Hamidreza Samouei 11 / Updated: Ulrich Haunz 210 Feb 21 '13 at 01:31

Varian FIDs ordering: Inner and outer loop in the sequence(Rance-Kay & States)?

1 0 15199
answers votes views
Dear all, I am new to NMR and I have difficulty understanding the ordering of FIDs, e.g. if an experiment uses both Ran...
Updated: nmr2rmn 3 Mar 27 '13 at 02:12

Bruker Minispec mq40. What is the daily check sample?

1 0 4k
answers votes views
Hello all, Our daily check sample for the Minispec mq40 has been decreased in volume due to probably evaporation!! An...
Posted: Amin os 43 / Updated: Xenia Tombokan 1 Apr 11 '13 at 08:43

WEFT water suppression on Varian?

1 0 5k
answers votes views
I am working with carbohydrates and in 1D NMR we have anomeric protons very close to the HOD peak, sometimes even right ...
Posted: ssvanleeuwen 1 / Updated: Bharathwaj 112 Apr 27 '13 at 08:32

How to implement phase cycles into Bruker pulse sequences

1 0 9k
answers votes views
Hi, I have been trying to implement some pulse sequences from literature into Bruker format. However, when it comes to t...
Posted: nmrman 1 / Updated: Jana 31 Apr 14 '13 at 21:11

problem in software

1 0 3k
answers votes views
Hi.we have a 500MHz AVANCE-bruker but unfortunatly it's has been quenched.our konsole has been off for about 6 month and...
Posted: shokoufeh karimnia 1 / Updated: John Hollerton 96 Apr 16 '13 at 07:57

Difference between 13C edited and 13C resolved NOESY

1 0 5k
answers votes views
Hii, I want to know the difference between 13C edited and 13C resolved NOESY and also tell me about the applicati...
Posted: ashu 1 / Updated: sekhar Talluri 621 May 25 '13 at 12:30

How to obtain a good COSY spectrum of a paramagnetic compound

1 0 4k
answers votes views
How to set up the experiment in order to obtain a good COSY spectrum of Cu(II) compound? I have tried to do it by just ...
Posted: Kiu Chor Sham 11 / Updated: sekhar Talluri 621 May 25 '13 at 12:57

Avance III 400 NMR lift unresponsive... emergency air lift activiated

1 0 8k
answers votes views
Hi, I am unable to activate our lift on our avance III 400 NMR from BruKer The message is emergency air lift activated....
Posted: Tamara 1 / Updated: wilsonmv 1 May 27 '13 at 18:53

How to start experiment at particular row

1 0 3k
answers votes views
I was running a 3D 15N edit NOESY (on a Bruker 600) and it was inadvertently stopped. I would like to restart the experi...
Posted: Lola Brown 1 / Updated: Pete Gierth 401 Jun 13 '13 at 11:05

counting unambiguous noe assignments

1 0 3k
answers votes views
Dear everyone, I was wondering how can I know the number of unambiguous noe assignments both after manual assignment an...
Posted: Yar 13 / Updated: eiso 31 Jul 10 '13 at 04:24

spinner .... stuck

1 0 13419
answers votes views
Dear Colleagues: I've varian nmr 300, and i've a problem with the spinner that doesn't eject, it stucked like it is froz...
Posted: Eyad omari 1 / Updated: Jerry Hirschinger 199 Jul 22 '13 at 08:35

Reset F1 axis (Bruker)

1 0 4k
answers votes views
Hi all, I have a 2D Bruker dataset that took a while to acquire, so I'd rather not simply repeat it. However, it seems...
Updated: wilsonmv 1 Aug 11 '13 at 22:12

2D 103Rh frequency wrong

1 0 4k
answers votes views
I have run a 1H-103Rh HMQC on [Rh(acac)(cod)] and found the chemical shift of the 103Rh to be -7023 ppm. The frequency ...
Updated: Linette Bennie 1 Aug 13 '13 at 05:29

Sensitivity gain by utilizing steady state polarization

1 0 6k
answers votes views
What do we exactly mean by "utilizing steady state polarization" to gain sensitivity in an experiment?...I know that ste...
Updated: nmr2rmn 3 Aug 07 '13 at 14:05

How to performing acquisition during all time multi pulse sequence - Bruker ?

1 0 72442
answers votes views
Hi all, I have a small question on how to aquired a complete signal in BRUKER AVIII. I want to create a multi pulse sequ...
Posted: TiagoB 5 / Updated: Pascal Fricke 236 Oct 11 '13 at 06:59

problem in opeining processed vnmr file into sparky

1 0 3k
answers votes views
hello everyone I have a problem in opening vnmr file into sparky. i have converted vnmr file into ucsf, when this file ...
Updated: surendra gupta 1 Oct 22 '13 at 00:02

how to do peak picking manually in VNMRJ

1 0 3k
answers votes views
I known how to pick peaks automatically. But it always omits some small peaks and picks some noise as peaks. Is there an...
Posted: de xiao 11 / Updated: dejian 11 Dec 12 '13 at 08:20

Capillary vs bulk solvent chemical shift difference

1 0 8k
answers votes views
I have prepared a sealed DMSO-d6 capillary tube (3mmOD) to use as an internal reference for an undergraduate prac using ...
Posted: Victoria Bitter 11 / Updated: SankarampadiAravamudhan 91 Apr 25 '14 at 16:59

NMR of compounds containing iron

1 0 4k
answers votes views
Are there any problems with doing proton NMR of a compound containing iron? ...
Updated: Debbie 1 Nov 15 '13 at 10:43
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