An automatic and semi-automatic continuous-sample-injection reaction device and an operating method thereof

Abstract

An automatic and semi-automatic continuous-sample-injection reaction device and an operating method thereof are disclosed. The device includes a sample injection device main body, a pushing bar, a first magnet, a second magnet, an end cap, a reaction container, and a reaction heating tank. The pushing bar is used for bearing a sample, and is mounted inside the sample injection device main body. The first magnet is mounted on the pushing bar, and interacts with the second magnet, and through moving the second magnet, synchronous movement of the pushing bar is achieved. The sample injection device main body is separately connected to the end cap and the reaction container to keep a sealed state. The reaction container is used for sample reaction. The reaction container can be put into the reaction heating tank so that a reaction can be controlled. The device and the method achieve on-line continuous sample injection, increase the number of samples, ensure constant-temperature stirring, increase the reaction efficiency and save time and the cost.

Description

technical field [0001] The invention relates to the technical field of multi-step (continuous or repeated) chemical reaction systems under vacuum, in particular to an automatic and semi-automatic continuous sampling reaction device and its use method. Background technique [0002] At present, the carbonate digestion reaction devices in laboratories and research institutes of domestic universities are used to test carbon and oxygen isotopes and binary isotopes, and each sample is basically reacted separately offline. That is, add phosphoric acid solution to one end of the "herringbone"-shaped reaction tube, and add carbonate rock sample to the other end, then vacuumize and seal, and then put each "herringbone"-shaped reaction tube into a constant temperature water bath for off-line reaction . If each sample is reacted in this way, it will take a lot of time and experimental materials; and the vacuum may not be maintained better; at the same time, it is difficult to realize t...

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Problems solved by technology

If each sample is reacted in this way, it will take a lot of time and experimental materials; and the vacuum may not be maintained better; at the same time, it is difficult to realize the stirring function, which may lead to incomplete reaction of the sample, etc., resulting in inaccurate results.

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