Full-automatic liquid-liquid sample treatment instrument

Abstract

The invention relates to a sample pretreatment treatment instrument, in particular to a full-automatic liquid-liquid sample treatment instrument. The treatment instrument comprises a solvent conveyingsystem, a separating system, a purifying and concentrating system and a control system; the solvent conveying system consists of a solution supplying system and an injection pump system; the solutionsupplying system, the injection pump system, the purifying and concentrating system and the separating system are separately connected with a main pipeline; the control system is electrically connected with each of the solution supplying system, the injection pump system, the purifying and concentrating system and the separating system respectively. The full-automatic liquid-liquid sample treatment instrument has the advantages of rapidness, easiness and convenience; time and labour are saved, and errors caused by operating by different personnel and transferring a sample frequently can be reduced; meanwhile, the use of a large amount of organic solvent can be avoided so as to reduce the pollution to the environment.

Description

technical field [0001] The invention relates to a sample pretreatment processing instrument, in particular to an automatic liquid-liquid sample processing instrument. Background technique [0002] Sample pretreatment is an important link in analytical chemistry. The purpose of sample pretreatment: ⑴ Concentrate trace amounts of the measured part, improve sensitivity and reduce detection limit; ⑵ Remove basic bodies and other interferences in samples; ⑶ Pass Derivatization and other reactions convert the measured substance into a substance with high detection sensitivity; (4) reduce the quality and volume of the sample, which is convenient for transportation and storage. [0003] Due to the complex composition of the analysis samples, they often interfere with each other during detection. At the same time, the concentration of the analyte is getting lower and lower, and the stability changes with time and space, which brings a series of difficulties to the analysis and determ...

AI Technical Summary

Problems solved by technology

[0007] ②It is easy to emulsify after the liquid-liquid is fully mixed;

[0008] ③ After emulsification, a high-speed centrifuge is required for demulsification and separation, which brings difficulties to automation;

[0012] ⑦ At the same time, due to manual operation, it is difficult to record operation-related data

[0013] Due to the above-mentioned difficulties, there is no fully automatic sample processor on the market from sample mixing, demulsification, organic solvent extraction, until evaporation to dryness. Up to now, it is still manual operation, with large errors, relatively low extraction efficiency, cumbersome process, organic The solvent cannot be sealed, which is easy to pollute the environment and affect the health of operators, making it difficult for liquid-liquid extraction to be widely used

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