The fully automatic rapid solvent extractor is an efficient and convenient laboratory sample pretreatment equipment. It accelerates the solvent extraction process of solid or semi-solid samples under high temperature and high pressure conditions, greatly improving experimental efficiency. Here is the usage method in the laboratory:

1、 Preparation before use

Sample preparation: Grind solid or semi-solid samples to an appropriate particle size to increase specific surface area and improve extraction efficiency. For some special samples, such as those treated with acid or alkali, they need to be mixed with the corresponding ion exchange resin before being loaded into the extraction tank.

Extraction tank preparation: Select the appropriate extraction tank volume based on the sample volume (such as 1mL, 5mL, 10mL, 22mL, 34mL, 66mL, 100mL, etc.), and ensure that the extraction tank is clean.

Solvent preparation: Select the appropriate solvent based on the properties of the test substance and pour it into a solvent bottle to ensure that the solvent purity meets the experimental requirements.

Collection bottle preparation: Select a suitable volume of collection bottle and place it on the collection bottle turntable of the instrument.

2、 Operation steps

Power on and parameter settings: Turn on the instrument power and set the extraction parameters in the control panel or workstation software according to the experimental requirements, including extraction temperature, pressure, static extraction time, flushing volume, blowing time, etc.

Sample loading and operation: Load the prepared sample into the extraction tank and place it on the extraction tank rack of the instrument. Start the instrument, and it will automatically complete the steps of solvent addition, temperature and pressure rise, static extraction, new solvent flushing, nitrogen purging, etc.

Collection and subsequent processing: After extraction is completed, the extraction solution will automatically flow into the collection bottle. As needed, the collected extraction solution can be further concentrated, purified, and processed.

3、 Maintenance after use

Cleaning and Cleaning: After the sample extraction is completed, run the cleaning method to clean the pipeline and ensure that there are no residual solvents or samples inside the instrument. Clean and dry the collection bottle thoroughly.

Shutdown: Turn off the instrument power, close the nitrogen cylinder valve, and tidy up the experimental table.

Registration and Recording: Record the usage time, sample quantity, and user information in the usage record book.

4、 Precautions

Operating standards: Operators must carefully read the user manual and pass the assessment before they can operate independently.

Safety protection: The instrument is equipped with a safety cover. When the cover is opened, the instrument cannot operate, ensuring safe operation.

Solvent selection: Choosing the appropriate solvent is the key to improving extraction efficiency, and it is necessary to follow the principle of "similarity is compatible".

Method optimization: By changing parameters such as solvent type, temperature, and pressure, extraction conditions can be optimized to improve extraction efficiency.

The fully automatic rapid solvent extractor has been widely used in laboratories due to its advantages of speed, efficiency, and low solvent consumption. By reasonable use and maintenance, experimental efficiency and accuracy of results can be greatly improved.