Pesticide residue testing sample pre-treatment

Pesticide residue testing sample pre-treatment

1. Product features:

1. With national invention patent: ZL 2011 1 0168356.2, through CE certification;

2. Vertical oscillation: large stability, sample crushing and mixing thoroughly;

3. High efficiency: sample crushing within 2 minutes;

4. High throughput: 2×15×15ml adapter, 2×8×50ml adapter can be freely selected;

5. Large sample processing capacity: 2×300ml nylon tank (soil grinding, no metal pollution);

6. High security: with safety door and safety lock;

7. No cross-contamination: the sample tube is fully enclosed during the crushing process to avoid cross-contamination;

8. Low noise: During the operation of the instrument, the noise is less than 70dB, which will not interfere with other experiments or instruments.

II. Product Usage:

1. Suitable for grinding preparation of soil agrochemical analysis samples;

2. Pre-grinding of samples suitable for pesticide residue detection;

3. Pre-grinding of samples suitable for environmental toxicological testing;

4. Pre-grinding of samples suitable for soil composition testing;

5. Suitable for grinding and mixing of a large number of samples.


Third, the product principle:

Vertical oscillation, the high-frequency reciprocating motion of the oscillation system, so that the frozen sample in the grinding tube collides with the grinding ball, and the grinding shear and impact forces generated by it completely break the tissue.

IV. Technical Parameters:

1. Vertical oscillation;

2. Oscillation frequency: 500-1800 times/min;

3. Grinding time: 10 seconds-99 minutes, user can set by himself;

4. Number of grinding platforms: 2;

5. Grinding ball material: stainless steel, chromium steel, zirconia, tungsten carbide, quartz sand;

6. Grinding ball diameter: 0.5-30mm;

7. Clamp stroke 3.7cm (vertical);

8. Power: 400W;

9. Open the door and power off function to ensure safety;

10. Power supply: 3-pin socket, 220-240V, 50Hz;

11. Weight: 62kg;

12. 尺寸:38cm(W)×46cm(D)×50cm(H)。

V. Configuration:

1. One host;

2. Adapter:

2.1 8-well 50ml adapter 1 pair;

2.2 15-well 15ml adapter 1 pair (optional);


2.3 100 pair of 1ml stainless steel grinding tank (optional);

2.4 200 pair of 1ml stainless steel grinding tank (optional);

 2.5 300ml nylon jars 1 pair (optional).



3. one set of alloy jig.

4. a set of grinding balls.

VI. Operation steps.

  1. add the processed samples, grinding balls in sequence to the centrifuge tubes.

  2. placing the centrifuge tube with the sample in the adapter.

  3. placing the adapter with the sample into the liquid nitrogen for several minutes of freezing.

  4. place the frozen sample and adapter in the middle of the jig and adjust the position.

  5. place the fixture on the sample table with the positioning slot in place, tighten the vertical positioning knob and return the safety lock to its place.

  6. cover the security door of the machine.

7. Set the vibration frequency and vibration time;

8. Start the machine and perform the crushing process;

9. Wait for the machine to completely stop vibrating and turn it off, open the safety door, and take out the sample;

10. Instrument homing.

VII. Precautions:

1. The instrument should be placed in a dry and ventilated environment;

2. The sample is symmetrically distributed in the sample holder to ensure the balance of the sample holder;

3. Before closing the safety door, confirm that the fixture is completely fixed and there is no loosening phenomenon;

4. When setting the oscillation frequency, it shall not exceed the maximum range of 1800 times/min;

5. When freezing samples, care should be taken to prevent liquid nitrogen from splashing out and causing frostbite.