Alfred Ross

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Questions related from Alfred Ross

Is there a method to estimate a molecular weight range of a polymer based on diffusion constant and structure of monomer unit?

I was measuring by use of NMR the diffusion constanat of a polymer. Now I want to provide a rough estimate of the MW range of this polymer. I know the structure of the monomer unit. Are there...

12 December 2015 9,915 6 View

What is the difference of chemical shift/spin state between 99Tc ground and 99mTc excited state?

Definitely purely academic: I recently saw an article on NMR of 99Tc which is spin 9/2. For this nucleus, there exists an excited state which is called 99mTc. This state decays by gamma-emission...

03 March 2014 861 6 View