What are the applications of the nitrogen blowing instrument in the daily production process?
Shanghai Xinzhuang Instrument Co., Ltd. adheres to the leading business philosophy of technological innovation and technology, and continues to make new contributions to the development of human social undertakings by carrying out strategic innovations and innovative product innovations. It is a company that integrates R&D, production and sales. Excellent product quality, excellent service, the company specializes in producing all kinds of laboratory equipment. Advantages of Nitrogen Blowing Apparatus 1. Multiple samples can be processed at one time, and the advantages are more obvious in multi-factor and multi-level repeated experiments. 2. The experimental operation is simple and flexible. It is possible to register the accounting at any time without restriction to adjust the process of enrichment. 3. The operator does not need long-term maintenance during the experiment, saving manpower. 4. The rotary evaporator may cause loss of sample when the solvent is boiled, and the nitrogen blower is accurate and sensitive when concentrated to avoid sample loss.
After the nitrogen blowing instrument 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 starts to heat. The nitrogen blowing instrument is lifted, and the samples that need to be concentrated by evaporation are respectively placed on the sample positioning frame and are lifted by the tray, wherein the height of the tray and the positioning frame can be adjusted according to the size of the training sample tube. Open the flow meter needle valve, the nitrogen gas reaches the gas distribution plate through the flow meter and the gas supply pipe, and after the gas is distributed, it is sent to the needle valve tube (mounted on the gas distribution plate) above each sample position. Then, the needle valve needle valve is adjusted through the net school, and the 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, the needle height is adjusted, and the sample surface is blown with ripples, and the sample is again Do not splash as well. Finally, the nitrogen blower was placed in a water bath until evaporation and concentration was completed.
Application of nitrogen blower for pesticide residue analysis: such as vegetable, fruit, grain, plant tissue environmental analysis: such as drinking water, groundwater and contaminated water sample biological analysis: such as serum, plasma, blood, urine commodity inspection: such as test grams Roft and other food and beverage: such as milk, wine, beer and other pharmaceutical drugs: such as traditional Chinese medicine
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