Centrifugal-free pretreatment method of plant sample for rapid solid-liquid separation assisted by magnetic particles

By adding magnetic particles to plant samples and using an external magnetic field to achieve rapid solid-liquid separation, the problem of strong dependence on centrifugation equipment in existing technologies is solved, the pretreatment process is simplified, and the processing efficiency of complex plant samples and the stability of analytical results are improved.

CN121994979APending Publication Date: 2026-05-08CHINA TOBACCO YUNNAN IND
0 Cites 0 Cited by

Patent Information

Application Number
CN202610220482.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-24
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing plant sample pretreatment methods rely on high-speed centrifugation equipment, which involves cumbersome procedures and low processing efficiency. In particular, the separation effect is unstable for powdery, fibrous, granular, or viscous samples, and they are easily affected by human factors, which affects the analytical efficiency and the repeatability of the results.

Method used

A rapid solid-liquid separation method assisted by magnetic particles is adopted. By adding magnetic particles to plant samples and applying an external magnetic field, the solid and liquid are rapidly separated, avoiding centrifugation and simplifying the pretreatment process.

Benefits of technology

It enables solid-liquid separation without the need for high-speed centrifugation equipment. The process is simple and easy to operate, applicable to various types of plant samples, improving processing efficiency and the stability of analytical results, while reducing the intensity and cost of manual operation.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a plant sample centrifugation-free pretreatment method for magnetic particle-assisted solid-liquid rapid separation, which comprises the following steps: adding magnetic particles into a plant sample extraction system, and fully combining the magnetic particles with insoluble solids under the action of vortex mixing and / or ultrasonic treatment to obtain a plant sample solid-liquid separation solution; then, solid-liquid rapid separation is achieved under the action of an external magnetic field, clear supernate is obtained, and the sample pretreatment process does not need to be completed through traditional centrifugal operation. The method does not depend on high-speed centrifugal equipment, is simple and convenient to operate and short in treatment time, and is particularly suitable for powdery or sticky plant samples. The obtained sample extracting solution can be directly used for gas chromatography-mass spectrometry or liquid chromatography-mass spectrometry analysis, and the analysis result has good consistency with that of a traditional centrifugal method. The method can effectively reduce the dependence on centrifugal equipment, simplify the sample pretreatment process and improve the pretreatment efficiency of complex plant samples, and is suitable for rapid detection and quality control of traditional Chinese medicines, spices, foods and other plant source samples.
Need to check novelty before this filing date? Find Prior Art