Absolutely fantastic teacher. He strikes the balance between making something accessible and--importantly--intuitive while also not watering things down too much or simplifying to the point of distortion. Really has the touch of a professor as opposed to a TH-cam educator, which I mean as a compliment. Sub'ed and look forward to looking at more content!
The answer is ... it depends. A standard proton spectrum of a reasonably concentrated sample can be acquired in under a minute. A highly dilute sample that requires over 100 scans can take five minutes. If one were to do a whole suite of experiments on a sample (proton, carbon, DEPT, COSY and so on) at least an hour of time is usually required. The longest experiments we typically see are carbon spectra of samples that have a low solubility in any common deuterated solvent. Those can be overnight runs of thousands of scans to get well defined peaks and a reasonable signal to noise ratio. I hope this helps.
Absolutely fantastic teacher. He strikes the balance between making something accessible and--importantly--intuitive while also not watering things down too much or simplifying to the point of distortion. Really has the touch of a professor as opposed to a TH-cam educator, which I mean as a compliment. Sub'ed and look forward to looking at more content!
Hi Jeff, great explanation. Only 400 MHz, is 400 million Hertz (rather than 400 billion Hertz). Keep up the good work!
Great explanations, thanks. Cracked me up how disgusted you looked about it looking like a UV spectrum.
awesome! best video I've found on lock & shim
Well done, Jeff. This was well presented!
Great explanation sir. Thank You.
Really cannot thank you enough for this explanation sir. Bless you
Great explanation, thank you
Great explanation, many thanks, prof. Jeff.
Thank you, I appreciate it.
very helpful
thanks Jeff
Thanks!
Hi. Please I am wondering how long does it take to acquire a spectra from a sample on standard NMR machines?
The answer is ... it depends. A standard proton spectrum of a reasonably concentrated sample can be acquired in under a minute. A highly dilute sample that requires over 100 scans can take five minutes. If one were to do a whole suite of experiments on a sample (proton, carbon, DEPT, COSY and so on) at least an hour of time is usually required.
The longest experiments we typically see are carbon spectra of samples that have a low solubility in any common deuterated solvent. Those can be overnight runs of thousands of scans to get well defined peaks and a reasonable signal to noise ratio.
I hope this helps.
Thank you
Very well explained
Jeff Orvis, i think it is 4bn instead of 400bn. lovely lecture
400MHz is 400 million...