NMR testing (Nuclear Magnetic Resonance) is used for determining the structure of organic compounds, analyzing their qualitative characteristics, and quantitatively measuring the relative content of compounds. The principle of NMR (Nuclear Magnetic Resonance) is based on the different spin behaviors of atomic nuclei, and the compound structure is inferred from the nuclear displacement. NMR is a crucial tool for structural identification of organic compounds, typically identifying functional groups by chemical shifts, determining bonding relationships through coupling splitting peaks and
Instrument Model and Parameters
- Instrument Model: Bruker AVANCE III HD 400 MHz
- Technical Parameters:
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- 400 MHz
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- Resolution: m/z-0.1H
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- Resolution < 0.35 Hz, S/N > 165:1 (for 13C)
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- Resolution ≤ 0.13 Hz, S/N > 1913 147:1
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- 31P: S/N > 150:1
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- 9F: S/N > 125:1
Sample Submission Requirements and Notes
- Sample form: Solid or liquid, 20–100 mg in a plastic centrifuge tube.
- The sample must be completely soluble in common volatile solvents (water, toluene, DMSO, methanol, chloroform, etc.).
Testing Cases
