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How is NMR spectroscopy read?

Answer 1

Certain protons in certain electronic environments resonate at certain frequencies against a "blank" compound in a strong magnetic field.

By that I mean there will certain peaks along the x-axis of the graph, such that it represents (1) how many proton/carbon types there are, (2) and a rough idea of what their electronic environment is.

It's very useful for identifying compounds while researching, or separating good batches of drugs from bad (pictured below is heparin batches, one is good, one is bad),

Here's a good chart to help you understand what I'm saying,

CompoundChem

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Answer 2

Skylar Alexander

NMR spectroscopy is read by interpreting the signals produced by nuclear magnetic resonance. Peaks on the spectrum correspond to different atomic nuclei, and their positions reveal chemical shifts, while intensities indicate relative abundances. Coupling patterns provide information about neighboring nuclei, and integration helps determine the number of protons.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.