Plastic Industry Terms
There are 412 entries in this glossary.
All
| Term | Definition |
|---|---|
| Nuclear Magnetic Resonance (Nmr) |
Determinations of the number of hydrogen atoms in a complex molecule and the characteristic grouping in which they occur, conducted by placing the specimen in a strong constant magnetic field, then applying a perpendicular r.f. alternating magnetic field. At certain frequencies of the latter field, a hydrogen atom nucleus will absorb and emit energy, the frequency and amount of which are indicative of the characteristic grouping in which the atom is located |