Unanswered questions

Which minimum distance between two magnets?

4 0 9k
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Dear all, how do you determine the minimum distance between two high-field magnets? Is it that their 5-gauss lines mus...
Posted: oxy 31 / Updated: John Hollerton 96 Apr 22 '13 at 05:56

spinning problem on varian probe

2 0 13884
answers votes views
We are using a Varian300autoSW probe, which had previously worked well with no problems spinning samples. We had switche...
Posted: quinn best 1 / Updated: Miguel 1 Feb 09 '18 at 06:48

topspin peak list file format

2 0 7k
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I am trying to parse a "peaks" file (generated by topspin) and convert it from binary to ascii, but couldn't find its fi...
Posted: badgerNMR 1 / Updated: John Hollerton 96 Apr 16 '13 at 08:13

Error in intergration of NMR peaks

1 0 6k
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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

Relaxation time of adenine H2

1 0 3k
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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

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

Lock 'lost' on Bruker 400MHz NMR

1 1 10092
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

lose the lock

4 0 8k
answers votes views
Recently the TOPSPIN always popup a windows "L-TRX board overtemperature error occurs" Then the lock is lost, and the lo...
Updated: Roja 26 Jan 07 '13 at 15:58

NQR technique

3 0 4k
answers votes views
Hi.I would like to run NQR test.I have some questions about it.are there any machines for this technique?if yes,please t...
Posted: shideh bb 1 / Updated: Elena Kurenkova 1 Jun 10 '13 at 00:34

Diamagnetic contamination

0 0 1k
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How to determine diamagnetic contamination in PRE experiments.In what extent it will effect the Gamma2 values? ...
Posted: Kris 11 Dec 14 '12 at 12:43
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