Nuclear magnetic pipe rack

Abstract

The invention discloses a nuclear magnetic pipe rack which comprises a faceplate, a middle partition plate, a bottom plate and pipe rack supporting columns; guide through holes are formed in corresponding positions on the faceplate and the middle partition plate; the bottom plate is provided with positioning holes corresponding to the guide through holes one by one; the faceplate, the middle partition plate, the bottom plate and a fixing screw are made of 6061 aluminum alloy subjected to precision machining, sand blasting and surface oxidation treatment through a numerically-controlled machine tool; each pipe rack supporting column is a copper connecting column; high-density elastic silica gel formed in one step is laid on the bottom plate, and the thickness of the high-density elastic silica gel is 1-3 mm, and the amount of high-density elastic silica hardening catalysts is 1:100-1:40. The nuclear magnetic pipe rack disclosed by the invention is made of three layers of finely-processed aluminum alloy materials, is resistant to acid and alkali, can be used under a strong magnetic field; as the optimized high-density elastic silica gel is arranged on the bottom plate, a nuclear magnetic pipe is prevented from breakage caused by contact with the bottom plate in a free-fall manner.

Description

technical field [0001] The invention relates to the technical field of experimental sample storage, in particular to a nuclear magnetic tube rack. Background technique [0002] NMR tube, as a high borosilicate glass container for NMR instrument sampling, has very high processing accuracy, usually its wall thickness does not exceed 0.5mm, and its length is between 15.3-22.6cm. During the research process, a large number of NMR tubes are used for sample loading. How to safely and efficiently place and store NMR tubes has become an inevitable demand. Most of the NMR tube racks on the market now use polypropylene as the main material. This type of NMR tube rack has low mechanical strength and cannot protect the NMR tubes from damage by external forces. In addition, when storing sample NMR tubes at ultra-low temperature on a large scale, Polypropylene material is easy to harden and crack, which is not conducive to long-term storage of biological samples. At the same time, most...

AI Technical Summary

Problems solved by technology

Most of the NMR tube racks on the market now use polypropylene as the main material. This type of NMR tube rack has low mechanical strength and cannot well protect the NMR tubes from external damage. In addition, when storing sample NMR tubes at ultra-low temperature on a large scale, Polypropylene material is easy to harden and crack, which is not conducive to long-term storage of biological samples

At the same time, most NMR tube racks have unreasonable structural design and mostly use double-layer plates. Since the NMR tube has a certain length, when it is placed in the panel hole, it is easy to cause the NMR tube to topple or fall through the bottom with a free fall, resulting in loss. Possibility of valuable samples

[0003] Because the existing NMR tube racks have the above-mentioned problems of unstable materials, easy breakage, and low firmness, which bring a lot of inconvenience to the storage of NMR tubes, there is an urgent need to develop an NMR tube rack with stable chemical properties and reasonable structure to solve the problem of nuclear magnetic The tube is easy to fall when put in and taken out, easy to drop and smash through the bottom, difficult to operate, etc.

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