Half round gutter pipe machine or down pipe machine, and you also call it as rain water pipe machine. It can help you do the gutter pipe in batch fully automatic.
The machine working speed is around 15 m/min. It is composed by decoiler, leveling part, main rolling forming machine and the receiving table.
Half Round Gutter Pipe Machine, Downpipe Machine, Rain Water Pipe Machine Zhongtuo Roll Forming Machinery Co., ltd , https://www.frameforming.nl
GC/MS testing>
As the essential oils in the beauty health can meet the modern people's pursuit of physical and mental health, essential oils will become personal, home care necessities. In particular, the continuous growth of many first- and second-tier cities in China has created a large number of high-income groups and middle-class people with strong spending power.
Insiders in the industry broke the news that many beauty salons resorted to low-cost industrial materials to blend essential oils for profiteering! The use of industrial raw materials and other counterfeit goods not only has no good effect on the human body, and sometimes even damages the skin, and customers appear in some places. Examples of disfigurements caused by the use of fake oils!
There are people in the industry who have uncovered shame: Some of the beauty salons provide inferior essential oils, which are actually industrial essences and add water! A little bit better will be mixed with a little glycerine to increase the viscosity and volatility. The cost is tens or even a few bucks of blended essential oils. Thousands or even ten thousand yuan can easily be sold! The industry gives a number of methods such as analysis of origin, sensory testing machine, and other methods. Through these methods, the most scientific method is to analyze essential oils through GC/MS. The content accurately determines the quality of essential oils.
With the development of the economy and people’s requirements for quality of life, the essential oils that originally belonged to the Western nobles have been seen everywhere. Essential oils, as a great resource of nature, have mysterious and wonderful functions and are constantly integrated into people's daily family life. They are no longer the exclusive luxury products of ancient royal aristocrats.
Due to the dramatic increase in work pressure, the shift in consumer awareness, and the demand for improved quality of life, essential oil consumption has begun to go beyond traditional professional venues. In the mall counters, specialty stores and even boutique shops, essential oil products are within easy reach. This has further promoted consumers' understanding of essential oil products. Because of the special effects of essential oils in beauty care, it can meet the modern people's pursuit of body and soul health. Essential oils will become essential for personal and home care.
In markets where counterfeit and inferior products are rampant, it is not so easy to distinguish authenticity from others. Industry insiders give analysis of origins, sensory testing machines, and other methods. These methods are used to identify the most scientific method. The GC/MS analyzer analyzes the content of essential oils and accurately judges the essential oil quality.
Through the "oil chromatogram" (GC-MS GC-MS analysis), determine the essential oil quality. In the analysis process, the gas chromatography instrument first separates the sample and determines the content of the sample. The mass of the separated ion is then determined by mass spectrometry to determine the composition. The results obtained by the chromatographic analysis are like the DNA data of essential oils. Through these data, the content of each essential oil component can be clearly obtained, and the quality of essential oils can be scientifically and effectively judged.