Bruker® MicroProbe/MicroCryoProbe NMR Tubes
About Bruker®
Bruker® develops advanced scientific instruments and analytical solutions that support research across life sciences, materials science and applied chemistry. Bruker systems help scientists explore matter at molecular, cellular and microscopic levels—enabling discoveries that improve research outcomes and, ultimately, human health and quality of life.
Bruker® MicroProbe MicroCryoProbe NMR Tubes
Bruker® MicroProbe MicroCryoProbe NMR Tubes are designed for high-field instruments above 600 MHz, where tube geometry and precision can directly influence spectral quality and experimental reproducibility.

These tubes are manufactured to exceptionally tight tolerances for camber and concentricity, helping to support:
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Improved shimming performance
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Enhanced signal-to-noise ratio (SNR)
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Greater measurement consistency across runs
Tube formats:
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Overall length: 4” or 8”
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Upper section outer diameter (O.D.): 5.0 mm
Bruker® 1.7 mm TCI MicroCryoProbe™
Bruker® 1.7 mm TCI MicroCryoProbe™ is designed for applications that demand extremely high mass sensitivity, delivering excellent ¹H sensitivity and strong performance on the carbon channel.
This sensitivity advantage makes it particularly valuable for NMR studies where sample quantity is limited, including:
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Natural products (often available only in very small amounts)
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Low-abundance proteins and peptides
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Small molecules and metabolite studies
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Difficult-to-express proteins
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High-throughput screening workflows where reduced target quantity is beneficial
For many real-world samples, this approach can be the difference between acquiring data that is merely detectable and obtaining spectra that enable confident structural interpretation.
Bruker® MicroProbe/MicroCryoProbe NMR Tubes
| Catalog No. | MHz Rating | Probe Type | Stem Length | Stem O.D. | Stem I.D. | Stem Volume | Overall Length |
|---|---|---|---|---|---|---|---|
| 620-1A | 500 | Bruker® 1.0 mm MicroProbe | 50mm | 1.00mm | 0.80mm | 25 µL | 8” |
| 620-1H | 500 | Bruker® 1.7 mm MicroProbe | 43.5mm | 1.70mm | 1.30mm | 22 µL | 4” |
| 620-1B | 500 | Bruker® 1.7 mm MicroCryoProbe | 50mm | 1.70mm | 1.30mm | 66 µL | 8” |
| 620-1G | 500 | Bruker® 3.0/2.5 mm CryoProbe | 43.5mm | 2.00mm | 1.60mm | 87 µL | 4” |
| 620-1C | 500 | Bruker® 3.0/2.5 mm CryoProbe | 50mm | 2.00mm | 1.60mm | 100 µL | 8” |
| 520-1A | 800 | Bruker® 3.0/2.5 mm MicroProbe | 50mm | 2.50mm | 2.16mm | 1.83 µL | 8” |
| 620-1F | 500 | Bruker® 3.0 mm CryoProbe | 43.5mm | 2.95mm | 2.41mm | 198 µL | 4” |
| 620-1D | 500 | Bruker® 3.0 mm CryoProbe | 50mm | 2.95mm | 2.41mm | 228 µL | 4” |
| 620-1E | 500 | Bruker® 3.0 mm CryoProbe | 50mm | 2.95mm | 2.41mm | 228 µL | 8” |
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