1. Those who have not been trained and assessed cannot use the centrifuge.
2. Use a centrifuge to select the appropriate rotor and speed, and never use it at speed (the high-speed centrifuge of the company is equipped with standard, rotor recognition technology, and the speeding accident is eliminated from the source).
3. Choose the right temperature, usually 4 ° C, do not lower than the organic solvent, so as not to freeze, damage the centrifuge tube and rotor.
4. The high-speed refrigerated centrifuge rotor must be cleaned with a hole rod before use, and carefully check for cracks and white spots on the bottom of the hole. If so, turn around and scrap.
5. The amount of solution loaded in the centrifuge tube must be appropriate. The stainless steel tube has no cover and can only be installed 2/3. The plastic tube can be attached to the shoulder. The cover must be covered and not allowed to leak. Empty tube centrifugation will deform. The use of organic solvents in plastic pipes must comply with the regulations.
6. Centrifuge tubes must be placed in pairs and must be strictly balanced with a deviation of <0.1g.
7. No idling is allowed, and the handle must be used to prevent the rotor from slipping. Turn the head to be light and steady. When you lower the handle, hold the handle with your hand and turn the head. The rotating head cover should be tightly closed, and the cover is not allowed to be centrifuged.
8. Do not open the cover during centrifugation. Do not support the centrifuge. If there is abnormal sound and vibration, stop immediately.
9. After using the rotor, it must be taken out from the rotor room in time and wiped dry. Wipe the hole carefully with a hole rod. If there is a solution overflow, it must be cleaned, wipe the condensate inside the rotor, and open the door to dry the rotor room.
This article was edited by the laboratory instrument - Hunan Gilson Technology Development Co., Ltd.
Health-preserving Herbal Tea, listen to the name, you can see three meanings. One is to keep in good health, give a person a very healthy feeling; Second, flowers and plants, Chinese traditional medicine treatment is to use some natural flowers and plants to regulate the body; Third, tea. China has been the birthplace of tea culture since ancient times. A warm cup of tea gives people a warm feeling. So what are the benefits of herbal teas?
The reason why health herbal tea can be called health is because it can recuperate people's body deficiencies to a certain extent. For example, regulating the spleen and stomach, nourishing liver and eye protection, promoting blood circulation and removing stasis. Some health care herbal tea long-term drinking, but also can make people produce antibodies, to achieve the anti-cancer effect. As we all know, with the aggravation of pollution and the change of living habits, cancer happens more and more frequently, which is one of the reasons why so many people pay attention to health preservation.
Everyone is in pursuit of health, and health herbal tea is the simplest way. Do not need to spend much energy, take up how much time, spend how much money, how much mind. A cup of warm health herbal tea, in the office, hand can be to, can quench thirst, but also health, why not?
Health Scented Tea,Jasmine Flower Tea,Lemon Scented Tea,Blooming Jasmine Tea
XuChang Youjia Food Product Development Co., LTD , https://www.yjgrain.com