704, 2015
  • Analytical Chemistry - 13-C NMR Chemical Shifts

Analytical Chemistry – A Guide to 13-C Nuclear Magnetic Resonance (NMR)

April 7th, 2015|

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In previous entries in the Analytical Chemistry series of graphics, we’ve looked at some of the tools that chemists can use to determine the identity of compounds in various samples, including infrared spectroscopy and hydrogen nuclear magnetic resonance (NMR). Today looks another similar method, that of carbon NMR; the graphic provides some general information on interpreting the resultant spectra, whilst we’ll briefly discuss how these signals are created below.

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2402, 2015
  • Analytical Chemistry - 1-H NMR Chemical Shifts

Analytical Chemistry – A Guide to Proton Nuclear Magnetic Resonance (NMR)

February 24th, 2015|

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Today’s graphic is one for the chemists, with a guide to chemical shifts in proton nuclear magnetic resonance. At first glance, for those without a background in chemistry, this may well look largely nonsensical – however, if you’re interested in learning a little more about how chemists can work out the structures of organic compounds, read on below for an explanation that tries its best to be a simple one!

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502, 2015
  • Analytical Chemistry - Infrared Spectroscopy

Analytical Chemistry – Infrared (IR) Spectroscopy

February 5th, 2015|

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I’ve been covering infrared spectroscopy recently with one of my A level classes, and realised that I haven’t really come across an aesthetically appealing reference chart for the frequencies of absorption – which seemed like as good an excuse as any to make one myself. So, here it is! Now, if you’re not a chemist, you may well be wondering what on earth IR spectroscopy is, so I’ve put together a brief explanation below.

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