Determination of other s Adenosyl Nonoxynol 9 Factory methionine: take the goods, add water to make each 1 ml contains 10 mg of solution, according to the thin layer chromatography (TLC) test, drain the solution above 5 mu l, points on the silica G thin layer plate, n-butyl alcohol - glacial acetic acid and water (4:1:5) as developing agent, unfolds, dry, dry in 90 ℃ for 10 minutes,...