4. 4 Determination of moisture>Weigh 10g of laboratory sample, accurate to 0. 01g, according to the provisions of GB/T6283
Industrial recovery of methyl chloride (4)
Time of Update: 2021-10-24
Even if there is only one indicator that does not meet the requirements of this standard as the result of the re-inspection, the batch of products shall be treated as unqualified .
JAMA N: Evidence of dual antibody treatment for patients with NIHSS scores of 4 and 5
Time of Update: 2021-10-20
randomized to receive ticagrelor (180 mg loading dose on day 1, 90 mg twice daily on day 2 to day 30) or placebo within 24 hours of onset . All patients took 300-325 mg aspirin on day 1, and then 75
1-Phenyl-3-methyl-5-pyrazolone (one)
Time of Update: 2021-10-15
This standard applies to the product quality inspection of 1-phenyl-3-methyl-5-pyrazolone .
1-Phenyl-3-methyl-5-pyrazolone (two)
Time of Update: 2021-10-15
3. 1 Method summaryThe standard titration solution of 1-phenyl-3-methyl-5-pyrazolone and sodium nitrite undergoes nitrosation reaction under acidic conditions, and the end point is indicated by starch-potassium iodide test paper .
Industrial methyl chloride (4)
Time of Update: 2021-10-04
Using bromocresol green as an indicator, titrate with sodium hydroxide standard titration solution to calculate the acid content .
Industrial methyl chloride (5)
Time of Update: 2021-10-04
6. 2 The packaging volume of industrial methyl chloride shall be carried out in accordance with the filling standard GB14193 for liquefied gas cylinders .
Product performance and production principle of 2-methyl-5-nitroaniline
Time of Update: 2021-08-29
2-methyl-5-nitroaniline (2-methyl-5-nitroaniline ) , also known as big red group G, red bass, bass red flag, of the formula C .
Production process and product standard of 2-methyl-5-nitroaniline
Time of Update: 2021-08-29
6. Production process1) Salt formationPut 98% concentrated sulfuric acid from the metering tank into the nitrification pot, cool the temperature to 0-25°C, add o-methylaniline under stirring , maintain this temperature, and stir until it is completely dissolved .
5 COVID-19 drugs included in the EU priority accelerated review: 4 antibodies and 1 JAK inhibitor
Time of Update: 2021-08-29
Eli Lilly’s antibody cocktail bamlanivimab/etesevimab is the first drug approved in the United States to treat patients at high risk of developing severe COVID-19 .
"Fourteenth Five-Year Plan": my country's plastics processing industry faces 5 major opportunities and 4 major challenges
Time of Update: 2021-08-13
to the plastics industry will continue to emerge, which will further cross-border integration, ecologicalization, and artificial intelligence for the industry. 1. The innovative development of networked information technology brings
Situation of 4 Batches of Vinegar Sampling Inspection (No. 5, 2021)
Time of Update: 2021-08-02
> Gansu Provincial Food Inspection Research Institute Non-volatile acid (calculated as lactic acid) (g/100mL)
