Shanghai Haozhuang Instrument Co., Ltd. develops the LNB brand nitrogen blower, which is energy-saving and environmentally friendly, leading the country.
How it works: There are two ways to speed up evaporation: strengthen the air flow around it and its temperature. Nitrogen is also an inert gas and can also isolate oxygen to prevent oxidation. The nitrogen blower achieves the purpose of concentration through these principles. It will blow nitrogen gas quickly, continuously and controllably to the heated sample surface to achieve rapid concentration of a large number of samples.
Usage: After the nitrogen blower is installed, the chassis is supported in a constant temperature water bath, the water bath power is turned on, the water bath temperature is set, and the water bath begins to heat up. Raise the nitrogen blower, place the samples that need to be evaporated and concentrate on the sample positioning frame, and hold it by the tray. The height of the tray and the positioning frame can be adjusted according to the size of the training sample test tube. Open the needle valve of the flowmeter. Nitrogen reaches the gas distribution plate through the flowmeter and the gas pipe. After the gas is distributed, it is sent to the needle valve tube (installed on the gas distribution plate) above each sample position. Then, adjust the needle valve needle valve through the network calibration. Nitrogen gas is blown to the liquid sample test tube through the needle valve tube and the needle. The needle valve tube can be slid up and down by adjusting the lock nut to adjust the height of the needle. It is better not to splash. Finally, place the nitrogen blower in the water bath until the evaporation and concentration is complete.
It is recommended that users refer to the following methods for cleaning and maintenance.
1. Heating medium: It is best to use distilled water and deionized water, which will prevent scale formation on the water bath wall. Be careful not to use organic solvents as heating medium.
2. Algaecide: When not heated, add algaecide in the water of the water bath to prevent biological pollution. No acidic algaecide should be used, and it should be ensured that the algaecide used will not affect the sample to be processed.
3. Change the water: It is recommended to change the water in the water bath once a week, the longest is no more than one month.
4. Acidic environment: When contacted or exposed to acidic materials, steam or samples, they should be cleaned immediately, neutralized with a moderate sodium bicarbonate solution or other similar solutions, and then rinsed with clean water. Prolonged exposure to acidic substances will damage the instrument. If you must be exposed to acidic substances for a long time, protective measures should be taken.
5. Needle: It should be cleaned after each use of the needle to minimize needle contamination. Organic solvent washing, autoclaving and Soxhlet extraction techniques can be used.
6. Immersion: The bottom of the bath is water resistant but not waterproof. Never immerse the water bath in any liquid or place it where it may occur.
Shanghai Haozhuang has not only developed low-temperature and constant-temperature instruments, ultrasonic instruments, cabinet instruments, microbiological instruments, ice-making refrigeration instruments, and laboratory supporting instruments, but also gradually formed a product pattern in which various scientific instruments and technical reserve products develop together. . Professional achievement quality, looking forward to your purchase!
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