Liquid phase chromatographic sample manager

Abstract

The invention discloses a liquid phase chromatographic sample manager. According to a greatest innovation point of the invention, two two-position six-way valves, a two-position three-way valve, a two-position T-shaped valve and a distribution proportional electromagnetic valve are adopted to be interchanged and matched with one another, so that a sample derivation function, a sample feeding analysis function, a fraction collection function and a collection nitrogen-blowing concentration function can be satisfied. By designing two injectors, a sampling injector can be used for precisely feeding a sample, transferring the sample and deriving the sample, and a solvent injector can be used for replacing and washing solvent, so that the accuracy of instruments can be greatly improved, the abrasion of the sampling injector can be reduced, and the service life can be prolonged. According to the arrangement, the solvent of a random type in four solvent bottles can be mixed in a random ratio to form a solution, the accuracy is high, the use of the solvent can be determined according to the demand, the waste of solvent is avoided, the application cost of the solvent is reduced, and the environment pollution is reduced.

Description

technical field [0001] The invention relates to the field of liquid chromatography, in particular to a liquid chromatography sample manager capable of realizing multiple functions of sample derivation, sample introduction analysis, fraction collection and nitrogen blowing concentration of collected matter. Background technique [0002] Liquid chromatography technology is one of the important means for the separation of complex mixtures that humans have mastered. As a high-precision and fast analysis and separation tool, liquid chromatography has become an increasingly important means of analysis and preparation in life sciences, pharmaceutical industry, biochemical technology and production of fine chemicals. [0003] With the development of science and technology, the automation of liquid chromatography technology has gradually increased, and automatic sampling devices, automatic fraction collection devices, etc. have appeared. The automation degree of the analysis is grea...

AI Technical Summary

Problems solved by technology

This kind of experiment is relatively complicated, with many operation steps and a long waste of time. After the derivation is completed, it needs to be manually placed into the automatic sampling equipment for sample analysis. After the analysis, fractions need to be collected and concentrated in a nitrogen blower. collect

[0005] At present, if the above experiments are to be completed on the market, it is necessary to purchase sample derivation equipment, automatic sampling equipment, fraction collection equipment, and nitrogen drying recovery equipment, which will increase equipment purchase costs, increase labor costs, and cannot perform continuous automatic analysis. Greatly reduced analysis and preparation efficiency

Moreover, in the process of manual operation, it is impossible to accurately prepare solvents, and there will be waste of excess solvents and toxic derivative reagents, which will increase the cost of solvents and cause additional environmental pollution

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