Traceable intelligent titrating device and traceable intelligent titrating method

Abstract

The invention discloses a traceable intelligent titrating device and a traceable intelligent titrating method. The traceable intelligent titrating device comprises a fixing module, a locating module, an automatic reading module, an endpoint judgment module and a data processing terminal, wherein the fixing module is used for enabling a burette arranged on a support to be vertical to the ground; the locating module is used for enabling the automatic reading module to be flush with the liquid level; the automatic reading module is used for sensing the position of the liquid level and collecting liquid level image information; the endpoint judgment module is used for collecting image and color data information of initial and endpoint sample solutions; the data processing terminal is used for automatically computing the volume of used titrating liquid, carrying out blank, temperature and burette correction, automatically computing a result according to a formula and related data, printing a report and an original record, and uploading all information related to pictures, images, color data and a computing process to an LIMS (Laboratory Information Management System). The traceable intelligent titrating device disclosed by the invention is simple in structure and convenient to use, an operator can be helped more quickly and accurately carry out titrating operation, initial and endpoint liquid level positions of the burette and image and color information of a reaction solution are preserved, the purpose of data tracing is achieved, and investigation and check are convenient.

Description

technical field [0001] The invention relates to the field of chemical titration analysis, specifically a traceable intelligent titration device and method [0002] technical background [0003] Titration analysis is an important means of chemical capacity analysis. Usually, a burette is used for titration, and the titration end point and reading are judged by the operator's naked eyes. The line of sight is level, and the accurate reading is estimated to 0.01mL. For different operators, due to different operating habits and experience, the error in reading varies greatly. In addition, the mutation of the indicator color is used as the basis for judging the titration end point. Because different operators have different sensitivity to the color, different sample matrices will interfere with the judgment of the end point, and the precision is difficult to grasp. It is often difficult to achieve GB / T 601 -The precision required by 2002 (the single-person four-parallel range does...

AI Technical Summary

Problems solved by technology

In addition, using the mutation of the indicator color as the basis for judging the titration end point, because different operators have different sensitivity to color, different sample matrices will interfere with the end point judgment, and the precision is difficult to grasp, and it is often difficult to achieve GB / T 601 -The precision required by 2002 (the single-person four-parallel range does not exceed 0.15%, and the two-person non-parallel range does not exceed 0.18%), to a certain extent, brings a lot of inconvenience to the experimental work.

Moreover, since the titration reading is a subjective judgment, the original state cannot be retained, and the data source cannot be traced, which brings inconvenience to the audit review

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