Nitrogen blowerAlso known as nitrogen concentration device, nitrogen purging, abbreviated as nitrogen blowing instrument, nitrogen blowing instrument, used for sample preparation in liquid phase, gas phase and mass spectrometry. Nitrogen blowing instruments mostly blow nitrogen to heat the sample surface, and sample concentration has the characteristics of saving time, simple operation, easy control, etc., which can quickly achieve the expected effect. The nitrogen blowing instrument purifies and heats the sample liquid with inert gas to rapidly concentrate the sample to be processed, achieving the effect of rapid separation and purification.
Nitrogen blowerWidely used for batch testing of pesticide residues, pharmaceutical industry, and general research. installNitrogen blowerAfterwards, the chassis is supported in a constant temperature water bath, the water bath power is turned on, and the water bath temperature is set to start heating. Lift the nitrogen blowing instrument, place the samples that need to be evaporated and concentrated on the sample positioning rack, lift the tray, and adjust the tray height and positioning frame according to the size of the training sample tube. Open the needle valve of the flow meter, and nitrogen will flow through the flow meter and gas supply pipe to reach the gas distribution plate. After distributing the gas, send it to the needle valve tube above each sample position (installed on the gas distribution plate).
Then, adjust the needle valve through the network and blow nitrogen gas into the liquid sample tube through the needle tube and needle. By adjusting the locking nut, the needle valve tube can slide up and down. By adjusting the needle height, ripples can be created on the surface of the sample, and the sample will not splash again. *Afterwards, place the nitrogen blower in a water bath until evaporation and concentration are complete.