Illustrated Glossary of Organic Chemistry
ppm (parts per million):
In
NMR spectroscopy
, the units of the
chemical shift
scale.
Signals
in this
1
H-NMR
spectrum
of 2-
methoxy
butane
lie between 0.0 and 4.0 ppm.
Related terms:
Shielded
,
upfield
,
deshielded
,
downfield
,
δ
,
TMS
Wikipedia entry
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