Do you know how to maintain the nitrogen blower?
Nitrogen blowing instrument is also called: nitrogen concentrating device, nitrogen purging instrument, nitrogen blowing concentrator, abbreviated as: nitrogen blowing instrument, nitrogen blowing instrument, sample preparation in liquid phase, gas phase and mass spectrometry, using internationally recognized technology, Nitrogen blowing instruments usually blow nitrogen into the surface of the heated sample for sample concentration, which is characterized by time saving, convenient operation and easy control. Widely used in pesticide residue analysis, commodity inspection, food, environmental, pharmaceutical, biological products and other industries.
Since the nitrogen blowing instrument needs to be immersed in the water bath during operation, it must be cleaned and maintained after use to prolong the service life of the instrument.
First, select the appropriate heating medium
The heating medium is preferably distilled water and deionized water, which will effectively prevent scale formation on the water bath wall. Be careful not to use organic solvents as heating medium. Organic solute volatilization is toxic and harmful to human health.
Second, the use of algaecide purification water bath
After the test is completed, when the heat is not heated, the algaecide is added to the water bath to prevent the organism in the water bath from being contaminated. When using algaecides, ensure that the algaecide used does not affect the properties of the sample to be treated and that acidic algaecides should not be used.
Third, regular water changes
The impurities produced by long-term experiments, as well as the pollutants in the air, will pollute the water, not only the scale, but also the accuracy and rate of the experiment. Therefore, the water in the water bath is recommended to be changed every week, and the longest is not more than one month.
Fourth, the acid environment protection
When exposed to or exposed to acidic materials, vapors or samples, they should be washed immediately, neutralized with a mild sodium bicarbonate solution or other similar solution, and rinsed with water. Prolonged exposure to acidic materials can damage the instrument. If it is necessary to contact the acid for a long time, protective measures should be taken.
Fifth, clean the needle
After each use of the needle, the needle should be washed with organic solvent and autoclaved to minimize the contamination of the needle and the impact on the later experiments.
6. Prohibit long-term immersion
The nitrogen blower bath is water resistant but not waterproof. After the test is completed, the nitrogen blower should be removed and wiped clean in time. Never soak the water bath in any liquid or place it where it may be soaked.
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