Analysis

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NMR:

Non-destructive technique analysis

Can confirm formula mass and give clues to structure

H and C have spin.

compounds containing spin are put in a magnetic field---- Direction of spin aligns with the direction of magnetic field.

energy required to change alignment depends on environment of proton.

Internal standard:

Reference chemical

Tetramethylsilane (TMS) (Ch3)4 si -------- 0ppm

Proton (H) NMR:

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