This is the Fan Express to me Wanyi Snake by bacteriostatic cream, the product in Jingdong praise over 10,000, Pinduoduo is more than 100,000 pieces of spelling; the merchant claims that natural herbs, plant formulas, deep bacteriostatic, gentle and soothing. Similar functional external products, we have also experienced a lot, nonsense is not much to say, a test to see the difference.
Directly speaking of the results, this elimination name of snake by bacteriostatic cream, contains at least 3 synthetic chemical components, they are methylparaben, propyl paraben and bibenzazole. Methyl paraben and propyl ester are commonly used bactericidal preservatives with certain bacteriostatic effects, while biflamiprazole is a broad-spectrum antifungal drug of imidazole, which is effective against skin fungi, yeast, mold and other fungi. This is another fake pure plant formula product that conceals the addition of chemical drugs.
Interested partners, let's take a look at our analysis and identification process:
The product formula is composed of cnidium monnieri, matrine, wolf venom, 100 parts, ground skin, hibiscus peel, soap horn thorn, white moss bark, chlorhexidine acetate, the composition should be more complex.
As a rule, we perform HPLC testing after extraction with 70% ethanol. The liquid phase map is not as complex as expected, you can see three very obvious signal peaks, from the retention time and ultraviolet absorption curve, the No. 1 and No. 2 targets are basically the same as the paraben methyl ester and propyl paraben we have identified in the past, and the preliminary judgment is that they are. Next, the mass spectrometry is illuminated.
Q-TOF-MS test results show that the retention time of 24.9, 39.6 and 39.7 minutes of signal is more obvious, their molecular weights are 151.04276, 179.07491 and 311.15268, the molecular formulas speculated by the instrument are C8H8O3[M]-, C10H12O3[M]- and C22H18N2 [M]+, which can be hammered: Target 1 and Target No. 2 are methyl paraben and propyl paraben. The initial judgment of target No. 3 is bifonazole. In the secondary mass spectrometry, target No. 3 hit the main fragment ion peak with a mass-to-charge ratio of 243.1172 and 165.0691, which can be hammered to bifonazole.
OTC topical drug Merkebenzylazole cream from Bayer, Germany, sells for less than 15 yuan for 10 grams, and 30 grams of Wanyi snake by bacteriostatic cream for more than 100 yuan online. It is not known whether the bifenzozole added by it is an API or a chemical intermediate. Theoretically, the manufacturer of the elimination name cannot buy the API.
In the new era, the people's income has increased significantly, but the people's yearning for a better life is certainly not achieved by buying products at high prices that conceal additions and becoming a leek.
The detection of "quick-acting" and "miraculous" pure plant products will continue. If the small partners have suspicious products to analyze, please leave a message.