Solid State Nuclear Magnetic Resonance (SSNMR) is an analytical technique focusing on solid-state samples. Considering sample molecules as a whole, the interactions detected in SSNMR can be divided into two categories: internal interactions within the sample and interactions exerted by the external environment. Different atomic nuclei exhibit distinct spin behaviors, and compound structures are inferred from nuclear displacement. SSNMR supports nuclear magnetic resonance analysis for 1H, 13C, 31P, 29Si, 27Al, 23Na, 19F, and 15N, enabling structural and qualitative analysis of organic compounds.
Instrument Model and Technical Parameters
- Instrument Model: Bruker AVANCE III 400 WB
- Technical Parameters:
- 400 MHz
- Resolution: m/z=0.1 H
- Resolution ≤ 0.35 Hz, S/N > 165:1 (for 13C)
- Resolution ≤ 0.13 Hz, S/N > 1913 147:1
- 31P: S/N > 150:1
- 19F: S/N > 125:1
Sample Submission Requirements and Notes
- Solid powder (passed through an 80-mesh sieve), 20–100 mg in a plastic centrifuge tube.
- Samples must not contain metallic elements or magnetic materials.
Testing Cases
Implementation Standards
- ISO 4504:20234 "Plastics - Determination of comonomer content in polyethylene (PE) by 13C-NMR spectroscopy in solution"
- ISO 8292-1:20084 "Animal and vegetable fats and oils - Determination of solid fat content by pulsed NMR - Part 1: Direct method"
- GB/T 23296.16-2009 "Food contact materials - Polymer materials - Determination of 1,1-dichloroethylene in food simulants - Gas chromatography-mass spectrometry and nuclear magnetic resonance method"
