The taste of the tea is slightly bitter, sweet and cool. Can clear the head, wake up the spirit, solve the polydipsia, benefit urination, eliminate food, detoxification. Used for wind and heat, dizziness and dizziness; heat and polydipsia, or excessive drinking; more sleep, sleep, tired and tired; urinary short red is not good, or edema and oliguria; greasy food, indigestion; hot and humid diarrhea, dysentery. The role of tea: diuretic detoxification, degreasing, promoting digestion, eliminating fatigue, enhancing memory, anti-inflammatory and antibacterial, prevention of dental caries, anti-cancer, anti-radiation, anti-aging, prevention of high blood pressure. Ingredients in tea: protein, amino acids, alkaloids, tea polyphenols, sugars, lipids, vitamins, mineral elements. Determination of Protein in Tea by Kjeldahl Method Reagents and main instruments 1. Concentrated sulfuric acid (AR) 2, potassium sulfate (AR) 3. Copper sulfate (AR) 4, 3.0% NaOH solution 5, 2% boric acid solution 6, 0.05mol / L standard HCL solution 7. 0.1% mixed indicator: 0.1% methyl red alcohol solution and 0.1% methyl blue alcohol solution, mixed according to 1:1. Shanghai Chuangsai provides a methyl red indicator kit, product number: C015217-5ml*2, the price is 20 yuan. 8, micro-Kelvin ammonia meter Processing sample Accurately weigh 2g of sample, carefully transferred into the flask, and then add CuSO4 1g, K2SO4 10g and concentrated H2S04 50mL. Heat it in an electric furnace until the liquid turns blue-green transparent, then cool and dilute to 100mL. Shanghai Chuangsai provides 2-bromobenzeneboronic acid (containing an amount of anhydride), 244205-40-1, commodity number: C12-B2889-5G, price 740.6 yuan. Determination After washing the micro-Kjeldahl ammonia unit with steam, accurately remove 10.00mL of chemical solution, measure 25mL of NaOH, add to the reaction chamber, steam distillate to boric acid solution from grape purple to green, and finally use 0.05mol/L The HCL solution was titrated to pale grape purple. The quality of CANSPEC provides excellent performance, and its excellent quality meets the various needs of different experiments. Spot, biochemical reagents, APIs, pharmaceutical intermediates, scientific instruments, laboratory consumables, Shanghai Chuangsai, mass products special promotions, welcome Call us! When you cooking ,you will face on some problems .For example, the oven lid is too hot to touch , the fire always crush out,when fired the smoke is big .Our bbq accessories will help you when you search our net. The lid lifter for dutch oven keep safety and put on the lid of an oven during cooking .The smoker box add more special flavour of food.The charcoal box help to fire quickly and less smoke.The fire fan and fire starter help to make a fire easily! Bbq Accessories,Bbq Fan,Plastic Fan,Bbq Hand Fan MEO DEMO CO., LTD. , https://www.meokitchenknives.com