Hand simulated oscillator

1. The oscillation angle is greater than 25 degrees, and the oscillation arc is greater than 5cm. With the help of matrix impact, the sample is fully dispersed;

2. Shake 16 15 mL or 50 mL tip centrifuge tubes at once;

3. Shake back and forth 300 times per minute (300 rpm);

4. Independently set 5 time modes, ranging from 1-30 minutes;

5. The sample rack is made of spring steel, which is sturdy and durable;Reinforced base to prevent body displacement.

The QuEChERS method extracts the target substance by thoroughly mixing the dispersed filler with the matrix. among themManual shaking is a key stepDifferent people and states may have varying levels of shaking force, which may affect the purification effect of QuEChERS and the parallelism of the results.

Imitating the manual shaking action and angle of the "hand simulated oscillator", batch processing 16 samples,Digitally controlling the force and time of hand simulated oscillationEnsure that the QuEChERS purification material is thoroughly mixed with the substrate and assist in ensuring the parallelism of the test results.

The QuEChERS method is easy to operate, saves solvents, and has high efficiency. However, the theoretical number of trays for dispersed purification packing is equivalent to 1, which loses the purification advantage of SPE column chromatography. For some substrates with significant interference, such as green tea, black tea, and Pu'er tea, the purification effect needs to be carefully evaluated when using the QuEChERS method for purification.