Full-automatic tube cleaning device and method for cleaning EPR or NMR sample tube

Abstract

The invention discloses a full-automatic EPR or NMR sample tube cleaning device and a cleaning method.The full-automatic EPR or NMR sample tube cleaning device comprises a water inlet device, an air inlet device, a conveying pipe, a cleaning device and a control system, the output end of the water inlet device and the output end of the air inlet device are both connected with one end of the conveying pipe, and the other end of the conveying pipe is connected with the cleaning device; the control system is connected with the water inlet device, the air inlet device and the cleaning device; the cleaning device comprises a base, a hollow needle tube brush, an electric push rod, a rotating mechanism and a fixing base. The EPR or NMR sample tube cleaning device has the advantages that the operation of the water inlet device and the air inlet device is controlled through the control system, cleaning water and air are automatically provided for the cleaning device, full-automatic cleaning and drying of an EPR or NMR sample tube are achieved by controlling the operation of the electric push rod and the rotating mechanism, the cleaning efficiency of the EPR or NMR sample tube is greatly improved, and the cleaning efficiency of the EPR or NMR sample tube is improved. And moreover, the cleaning of the EPR or NMR sample tube is ensured, the accuracy of a later experiment is enhanced, and the operation of experimenters is more convenient.

Description

technical field [0001] The invention relates to the technical field of sample tube cleaning, in particular to a tube cleaning device and a cleaning method for fully automatic cleaning of EPR or NMR sample tubes. Background technique [0002] Electron paramagnetic resonance (EPR) is to detect the resonant absorption effect of incident microwaves when a sample with unpaired electrons undergoes Zeeman splitting of energy levels under the action of an external magnetic field. EPR is very sensitive to electron spin. If the sample tube is not cleaned cleanly, the signal of impurities will appear in the EPR spectrum. Therefore, it is necessary to ensure that the sample tube is clean during the experiment. Nuclear magnetic resonance (NMR) is a physical process in which the magnetic moment of an atomic nucleus with a non-zero magnetic moment undergoes Zeeman splitting in the spin level under the action of an external magnetic field, and resonantly absorbs radio frequency radiation of...

AI Technical Summary

Problems solved by technology

Since the EPR or NMR sample tubes are thin tubes with a seal at one end, they need to be cleaned after each test, and the cleaning work is particularly difficult

Some of the existing cleaning methods manually use an alcohol sponge wrapped in iron wire to insert the sample tube into the sample tube for repeated scrubbing, or use a conventional ultrasonic cleaner for cleaning, which requires repeated cleaning for a long time to ensure that the inner wall of the sample tube is cleaned. , the cleaning efficiency is very low

Another NMR sample tube cleaning device on the market is to use the principle of negative pressure to flush the sample tubes. Only one tube can be rinsed at a time, and the efficiency is low.

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