A solid sample online pretreatment device and its application

By integrating pressurized hot water extraction and dispersed liquid-liquid microextraction into an online solid sample pretreatment device, the problems of time-consuming, labor-intensive and poor reproducibility in solid sample pretreatment are solved, and rapid, automated sample pretreatment and efficient detection are achieved.

CN110907560BActive Publication Date: 2025-09-19CHINA JILIANG UNIV +1
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Patent Information

Application Number
CN201911298247.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-12-17
Publication Date
2025-09-19
Estimated Expiration
2039-12-17

AI Technical Summary

Technical Problem

In the prior art, the pretreatment of solid samples is time-consuming, labor-intensive, and has poor reproducibility. Manual processing results in low compound concentrations, making it unsuitable for subsequent testing.

Method used

An online pretreatment device for solid samples was designed. It combines pressurized hot water extraction and dispersive liquid-liquid microextraction methods with high-performance liquid chromatography to achieve online pretreatment and detection of solid samples. It includes the integration of high-performance liquid chromatography, column oven, condensation device and enrichment device, and uses computer-controlled automated operation.

Benefits of technology

It achieves rapid and automated pre-treatment and detection of solid samples, increases the concentration of compounds, and improves the reproducibility and efficiency of detection.

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Abstract

The present invention discloses an online pretreatment device for solid samples, comprising a high-performance liquid chromatography (HPLC), a column oven device, a condensing device, an enrichment device and a computer, wherein the outlet of the HPLC is connected to the inlet of the column oven device, the outlet of the column oven device is connected to the inlet of the condensing device, and the outlet of the condensing device is connected to the inlet of the enrichment device; the HPLC device, the column oven device and the enrichment device are respectively connected to the computer; the present invention also discloses an application of the device in solid sample detection, wherein the present invention combines pressurized hot water extraction with a dispersed liquid-liquid microextraction system to detect trace target compounds in solid samples; and the present invention can realize online pretreatment and detection of solid samples, and the method has good reproducibility.
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