The visible nitrogen purge heater enables the sample to be quickly and efficiently heated to the evaporation temperature, while the gas is blown from the gas chamber to the surface of the solution through the gas needle, which promotes rapid evaporation of the solution and concentration of the sample.

It is widely used in pesticide residue analysis, environmental analysis, education and scientific research, food and beverage and other fields.

1. The JC-220A heater of the visible nitrogen purge device enables the sample to be quickly and effectively heated to the evaporation temperature, and the gas is blown to the surface of the solution from the gas chamber through the gas needle to promote the rapid evaporation of the solution and the concentration of the sample

2. Each purging needle can be independently controlled and can be purged separately without wasting gas

3. The whole working system consists of adjustable gas chamber and heater

4. The position of the gas needle in the gas chamber of the visible nitrogen purge instrument can be changed to make it suitable for different test tubes. The standard gas needle length is 150mm

5. The height of the air cavity can be adjusted according to the height of the solvent liquid level. When concentrating toxic solvents, the whole system can be placed in a fume hood

6. Automatic fault detection and alarm function

7. Standard equipped with air cavity and special adjustable bracket

8. Built-in over-temperature protection device

9. Instant temperature display, time decrement display