I have recently moved to a lab which has a varian magnet, in the past I have only used brukers. The people here use NMRpipe for processing which I am not a fan of. Is there a simple way to process Varian data in topspin? I know this is relatively simple for 1D but I am told it cant be done easily for 2D or 3D data? is this the case?
Any answer would be appreciated
asked Dec 27 '10 at 10:10
Thomas, you just need to adjust a few more parameters. For phase sensitive data make sure that ph_mod is not set to mc or ps, but pk or no. The apodization function WDW probably also needs to be set.
answered Dec 29 '10 at 17:48
Hi Thomas, assuming this is phase-sensitive data, you want a cosine rather than a sine window function (i.e. window function starts at 1 and goes to zero, rather than starts and ends at zero). The SINE window function uses the value of the parameter SSB and has the form:
SINE(t)= sin( (PI-PHI)*(t/AQ) + PHI)
where PHI = PI/SSB, and t runs from zero to AQ.
If SSB = 1 (or 0), this is a sine finction, if SSB=2 this is a cosine function. For phase-sensitive data you want the cosine function, or you will get odd looking data, sort of "antiphase" and thus a bit like DQF cosy. I would also use the QSIN (squared sine/cosine) window for phase sensitive data, but it's the SSB value that's more critical. This should be 2 in both dimensions.
The sine window function with SSB=1 is used to narrow the base of the broad lines in magnitude-mode spectra - for magnitude mode data use WDW=SINE, SSB=1 and PHMOD=MC in F1, PHMOD=NO in F2.
Hope that helps!
answered Jan 13 '11 at 04:34
Topspin has a command
A minor issue we found is that sometimes the quad detection mode is set incorrectly for the multidimensional experiments, which can be adjusted in the
answered Dec 27 '10 at 11:34
Hi I am using Bruker Tpospin for brain spectroscopy analysis. I am new to this software. My question is how do I make spectral lines dotted or thicker instead of colors. Any hint is highly appreciated. Thanks Surya
answered Feb 28 '11 at 06:28