Time Domain NMR (TD-NMR)

The full name of time-domain nuclear magnetic resonance is Time domain NMR, or TD-NMR for short.

Time-domain NMR (TD-NMR) is a NMR technique based on relaxation time detection. Time-domain NMR is generally tested and analyzed through T1 and T2 relaxation times. It is a characterization method, and the testing process is fast and non-destructive.

Time-domain NMR is widely used in scientific research and industrial quality control, with applications spanning food, agriculture, material science, petroleum energy, nano-pharmaceuticals… such as solid fat content (SFC) testing, seed oil content testing, fiber Oiling rate test, material aging and cross-linking degree, quantitative test of live animal body fat, etc.

Compared with the frequency-domain NMR analyzer, the time-domain NMR analyzer is generally a benchtop NMR based on permanent magnets, while the frequency-domain NMR is generally a superconducting magnet.

Time-domain NMR is to study the interaction between molecules, such as molecular mobility, from the difference in relaxation time; frequency-domain NMR is to study the internal structure information of sample molecules from the frequency difference.

Application direction of time-domain NMR:

Food quality related: water molecular mobility, water holding capacity, water binding, hydration;
Agricultural field: seed oil content, seed moisture content, seed soaking process, seed germination;
Food and agricultural product processing: drying process research, moisture migration, moisture distribution, low temperature freeze drying;
Material domain: polymer aging, cross-linking, hardness research, etc.;
Industrial field: solid fat content, fiber oiling rate;
Geological energy domain: core pore analysis, displacement experiment, freezing and thawing, frozen soil, concrete

The features of time-domain NMR:

Based on permanent magnet technology, the maintenance cost is low;
Desktop NMR, the instrument is small and easy to install;
The instrument is easy to operate and can realize automatic operation;
Time-domain nuclear magnetic resonance is generally designed as a single-use function, and there is no requirement for operators;
The permanent magnet material is stable and the instrument is very durable;
The application of time-domain NMR continues to expand, with powerful functions and wide application scenarios;
The time-domain NMR test process is non-destructive, fast, green and pollution-free;