Spectrometry Instruments
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| Brand | Oxford Instruments |
|---|---|
| Origin | United Kingdom |
| Model | Wave500, Wave700 |
| Detector Integration | Ultim Max EDS |
| Geometry | Focusing Rowland Circle with Curved Crystals |
| Energy Resolution | <10 eV at Mn Kα |
| Detection Limit | <100 ppm (typical, matrix-dependent) |
| Slit Mechanism | Motorized Incident Slit for Resolution/Background Optimization |
| Mounting Configuration | Tilted Geometry for Enhanced SEM Compatibility and Reproducible Sample Positioning |
| Compliance | Designed for integration with Zeiss SEM platforms (e.g., GeminiSEM, Sigma, Merlin) |
| Brand | Zhongke-Niujin |
|---|---|
| Origin | Hubei, China |
| Manufacturer Type | Authorized Distributor & System Integrator |
| Product Category | Domestic High-Field NMR Spectrometer |
| Model | Quantum-I Plus |
| Operating Frequencies | 400 MHz and 600 MHz |
| Measurement Principle | Pulsed Fourier Transform (PFT) NMR |
| Sample Form | Liquid-state |
| Excitation Mode | RF Pulse Sequencing with Digital IF Sampling |
| Sensitivity | High (¹H S/N ≥ 500:1 @ 1% ethylbenzene, 1 scan, 5 mm probe) |
| Resolution | High (¹H linewidth ≤ 0.4 Hz, shimming optimized) |
| Quantitative Reproducibility | High (¹H integral RSD < 0.5% over 24 h) |
| Probe Compatibility | Broadband multinuclear (¹H, ¹³C, ¹⁵N, ³¹P, etc.), manual/automatic tuning, custom-configurable for 400–600 MHz superconducting magnets |