| 仪器编号 |
|
规格 |
|
| 生产厂家 |
Bruker |
型号 |
Bruker E500 |
| 制造国家 |
Switzerland |
分类号 |
|
| 放置地点 |
西湖大学（云谷校区）E10-130 |
出厂日期 |
2024/01/07 |
| 购置日期 |
2024/05/21 |
入网时间 |
2025/01/07 |
| 主要规格及技术指标 |
1. 灵敏度：可检测最小绝对自旋数≤1.0*109spins/G线宽；
2. 信噪比≥3000:1；
3. 数字化分辨率：32bit
4. 场扫描时间：5μs/点~5s/点
5. 稳定性： 5.1磁场噪声（短时间稳定性）：≤5 mG； 5.2 磁场稳定性（长时间稳定性）：≤10 mG；
6. 微波工作频率：X波段（9.2GHz~9.9GHz）；
7. 最大功率输出: 600mW；
8. 最大磁体强度：14500 G；
9. 工作温度：变温范围包括100-600 K；
10. 可编程转角器。
1. Sensitivity：≤1.0*109 spins/G;
2. Weak Pitch signal-to-noise ratio: ≥3000:1;
3. Digital resolution: 32 bit;
4. Sweep field resolution: 5μs/point~5s/point;
5. Stability：5.1 Shot term field stability ≤5 mG; 5.2 Long term field stability ≤10 mG；
6. Microwave frequency: 9.2 ~9.9 GHz (X-band)；
7. Max output microwave power in leveled mode: 600mW;
8. Max magnetic field strength: 14500 G;
9. Temperature range: 100-600 K;
10. Programmable Goniometer. |
| 主要功能及特色 |
Bruker E500型X波段连续波电子顺磁共振波谱仪是一台高灵敏度、高稳定性，能满足多种实验场景的波谱仪。该仪器集成仪器控制软件、数据处理软件和波谱拟合软件。配备了SuperX 微波单元，超高灵敏度谐振腔ER4122SHQE，以及用于动力学的带四孔水溶液样品池混合腔，包含数字化锁相模式、快扫模式、瞬态模式这三种检测模式。仪器的变温范围在100-600K，也搭配了可编程转角器，可进行原位变温、原位转角等连续波epr实验。软件也包含EPR相对定量、绝对定量以及Q值计算等功能。适用于物理学、化学、材料科学、生物医学、环境科学等领域的研究。
The Bruker E500 X-band continuous-wave electron paramagnetic resonance (CW-EPR) spectrometer is a high sensitivity and stability instrument suitable for various experimental scenarios. This device integrated multi-functions, such as instrument-control, data-analysis and spectrum fitting. It is equipped with the SuperX microwave bridge, super-high sensitivity resonator ER4122SHQE, and a mixing resonator with 4 quartz sample cells designed for reaction kinetic, featuring three detection modes: digital lock-in, rapid scan, and transient digital modes. The instrument has a working temperature range of 100-600 K and is equipped with a programmable goniometer, allowing for in situ temperature variation and in situ angle adjustments for continuous wave EPR experiments. The software also includes functions for EPR relative and absolute quantification, as well as Q-value calculation. It is suitable for research in fields such as physics, chemistry, materials science, biomedicine, and environmental science. |
| 主要附件及配置 |
1.对测试的固体样品粒径小于3 mm（包括一些薄膜衬底样品，长度一般≤1.5cm，宽度≤3 mm，因为顺磁样品管直径在4mm）。样品质量依据材料自身性质一般控制在几毫克至0.1克左右。另外，吸波材料不适合做EPR测试。2.对于液体样品，提供约0.5mL溶液；对需要检测自由基的捕获实验，测试样品需现场配制，一般捕获后的产物寿命仅分钟级的。此外，捕获剂本身对光、环境温度也都非常敏感，不易长时间暴露在空气环境中。3.对需要进行惰性气体保护的EPR原位、光照、低温等实验，需要课题组提供自制的样品管附件。1.There is no special requirement for solid powder samples to be tested, as long as the particle size of solid samples is less than 3 mm (including some thin film substrate samples, generally no more than 1.5cm in length and 5mm in width, because the paramagnetic sample tube diameter is 3~5mm). Sample quality is generally controlled from a few milligrams to about 0.1 grams according to the nature of the material itself. In addition, absorbing materials are not suitable for EPR testing. 2. For liquid samples, provide about 0.5mL solution; For free radical capture experiments, test samples need to be prepared in the field, because generally the life of captured products is only minutes level. In addition, the trapping agent itself is very sensitive to light and ambient temperature, and is not easy to be exposed to the air environment for a long time. 3. For EPR in-situ requiring inert gas protection, illumination and low temperature experiments, the research group shall provide self-made sample tube attachments. |
