Spin-spin relaxation time in water

[KBriggs]

Hey all,

I just finished a lab on NMR, and I am looking around for a value to compare my results to. Does anyone know of a place I can find the spin-spin and spin-lattice relaxation times of pure water? I have been googling around with little success so far beyond order of magnitude estimates.

Thanks,
KBriggs

 

[alxm]

It's been a while since I studied NMR, but don't the exact values of T1 and T2 depend on the temperature, pulse sequence and frequency/field strength?

 

[KBriggs]

The crash course in theory I was given before the lab suggests that t1 and t2 are characteristic of the material being studied, while the magnetic field used dictates the length of the pulses needed to flip the net magnetization around in the sample, and temperature serves to mess with the uniformity of the magnetic field. So while these things will certainly effect your results, it would not ideally be the case. That said, I have not actually studied the theory in any detail in any point in my education so far, so that could be way off (the labs at my school are good like that...)