Chained continuous sample introduction, cleaning and calibration system based on photoelectric recognition

Abstract

The invention relates to a chained continuous sample introduction, cleaning and calibration system based on photoelectric recognition, and the system comprises: a sample bottle which is used for placing a sample; a sample bearing unit which is used for bearing the sample bottle, wherein a bar code is arranged on the sample bearing unit, and information loaded by the bar code comprises sample information and positioning information; a slideway groove, wherein the plurality of sample bearing units are arranged on the slideway groove in a sliding manner; a positioning driving mechanism which is mounted on the slideway groove and is used for positioning the sample bearing unit on the slideway groove; a bar code recognition module which is used for reading the bar code, acquiring positioning information of the corresponding sample bearing unit and sending the positioning information to the positioning driving mechanism; and a single lifting sample injector which is used for realizing automatic sample injection at a specified position. Compared with the prior art, the system has the advantages of capability of realizing real-time rapid sample injection, high positioning accuracy and thelike.

Description

technical field [0001] The invention relates to an automatic sampling system for a spectrometer, in particular to a chain continuous sampling, cleaning and calibration system based on photoelectric identification. Background technique [0002] Inductively coupled plasma spectrometer (ICP) is mainly used in the determination of the type and content of elements, which mainly relies on the peristaltic pump to pump the sample solution to achieve the purpose of detection. For example, patent CN202614670U discloses a device that adopts a peristaltic pump for intermittent sampling. The through pipe and the sampling main pipe communicated with the other end of the multi-way pipe, and the output end of the sampling main pipe communicates with the gas-liquid separation device. In practical applications, the above-mentioned sampling process mostly adopts the manual sampling method, that is, the sampling tube is switched back and forth between the standard solution, the sample and the ...

AI Technical Summary

Problems solved by technology

In practical applications, the above-mentioned sampling process mostly adopts the manual sampling method, that is, the sampling tube is switched back and forth between the standard solution, the sample and the cleaning solution, and a special person is required to take care of the whole process, the degree of automation is low, and the human factor is relatively large.

[0003] In order to solve the above technical problems, in the prior art, there is an automatic sample injector for sample injection, but most of the existing automatic sample injection systems with three coordinates of X, Y, and Z axes require three axis motors to drive , it is easy to lose steps and slip during acceleration and deceleration or long-term operation, resulting in positioning errors

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