Full-automatic dilution instrument and liquid dilution method

Abstract

The invention discloses a full-automatic dilution instrument and a liquid dilution method. The full-automatic dilution instrument comprises a workbench and a container placing area arranged on the workbench, and the container placing area is provided with a plurality of container positions for placing containers; the full-automatic dilution instrument further comprises a container transferring mechanical arm, a liquid injection device, a uniform mixing device, a containing device, a pipette device, a waste pipette head containing device and a control device which are connected to the workbench, wherein the uniform mixing device is used for uniformly mixing liquid in the containers, the containing device is used for containing a pipette head to be used, and the waste pipette head containing device is used for receiving a replaced pipette head. On the basis of the full-automatic dilution instrument, when the dilution method is adopted for liquid dilution, the working intensity of operators can be greatly reduced, uncertainty and errors caused by manual operation are effectively avoided, then the accuracy and repeatability of continuous dilution results are guaranteed, the reliability of subsequent test results is improved, and the traceability of a dilution process is improved.

Description

technical field [0001] The invention belongs to the technical field of detection, in particular to a fully automatic diluter and a liquid dilution method used in the detection field. Background technique [0002] In the fields of biology, medicine, and chemistry, it is often necessary to perform standardized serial dilutions of stock solutions to obtain low-concentration stock solutions for subsequent experiments. In order to reduce the error caused by one-time dilution, a smaller proportion of serial dilution is generally adopted to obtain a target liquid with higher accuracy and lower concentration. Especially in the field of microbial testing, in order to count the number of microorganisms in the liquid, the sample is generally diluted by 10-fold serial dilution. According to the number of microorganisms in the original sample, the sample liquid is often diluted thousands of times. For probiotic samples, liquid fermentation samples, and prepared pure bacterial stock sol...

AI Technical Summary

Problems solved by technology

[0004] It can be seen that although the content of the dilution work is simple, the workload is heavy, and the simple repetitive actions are likely to make the workers tired, resulting in errors in the accuracy of liquid extraction and standardization of liquid addition, that is, errors in the dilution results, Thus affecting the deviation of subsequent test results

Furthermore, the dilution process is not traceable when done manually

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