波谱学杂志 ›› 2025, Vol. 42 ›› Issue (1): 89-95.doi: 10.11938/cjmr20243121cstr: 32225.14.cjmr20243121

• 研究论文 • 上一篇    下一篇

全自动式EPR样品管清洗装置的设计

李晶鑫*(), 童伟#(), 于璐, 张志涛, 皮雳   

  1. 极端条件凝聚态物理安徽省重点实验室,中国科学院合肥物质科学研究院强磁场科学中心,安徽 合肥 230031
  • 收稿日期:2024-06-26 出版日期:2025-03-05 在线发表日期:2024-08-01
  • 通讯作者: *Tel: 0551-65595194, E-mail: jingxinli@hmfl.ac.cn;# Tel: 0551-65595671, E-mail: weitong@hmfl.ac.cn.
  • 基金资助:
    中国科学院建制化基础科研项目(JZHKYPT-2021-08)

Design of an Automated Instrument for Washing EPR Sample Tubes

LI Jingxin*(), TONG Wei#(), YU Lu, ZHANG Zhitao, PI Li   

  1. Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, The Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China

摘要:

针对磁共振领域电子顺磁共振(EPR)细长样品管难清洗的问题,设计了一种全自动式EPR样品管清洗装置.整个装置主要包括纯水机、储水箱、增压水泵、空压机、控制器、电磁阀管路以及清洗台,通过树莓派电脑和继电器扩展模块以及Python GUI程序控制电磁阀和电机/升降杆实现EPR样品管的全自动式清洗及吹干.利用该装置对盛装过固体和粘稠液体的EPR样品管进行清洗效果对比,结果表明该装置清洗效果好(低温T =2 K条件下无杂质信号),效率高(5 min内完成一次清洗干燥),具有较高的实际应用价值.

关键词: 全自动, 清洗, 磁共振, EPR, 样品管

Abstract:

Many quartz tubes are used in electron paramagnetic resonance (EPR) experiments. These tubes are long and thin, and difficult to clean. To address the problem, an automated washing instrument for EPR sample tubes is designed. The whole instrument mainly includes a water purification machine, water storage tank, booster pump, air compressor, controller, solenoid valve pipeline, and washing rack. Fully automatic washing and drying of EPR sample tubes is achieved by controlling the solenoid valve and the motor/lifter through a Raspberry Pi computer, relay extension module, and Python Graphical User Interface (GUI) program. The instrument is used to clean EPR sample tubes that had contained solid and viscous liquid. The results demonstrate that the instrument has excellent cleaning performance (no impurity signals under low-temperature conditions of T =2 K) and high efficiency (completing a cleaning and drying cycle within 5 min), showcasing significant practical application value.

Key words: automated, washing, magnetic resonance, EPR, sample tubes

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