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31. The invention discloses a substituted phenol for methylal phosphate anesthetic and sedative drugs and a preparation method thereof.

32. This thesis describes an industrial experiment about the production of cumene on zeolite catalyst in phenol - acetone plant of Jilin Petro- Chemical Co. Ltd.

33. Brown liquid , mainly consist of phenol , cresol and xylenol etc.

34. Methods Ammonia water steaming test was performed to prove the antitussive effects of OIV, and the expectorant effects of OIV was confirmed by phenol red secretion test.

35. HPLC method was established for determination of phenol,(sentencedict .com) camphor and thymolum in Menthol and Thymol Liniment.

36. Some of phenol compound and oxygen containing compounds with tertiary butyl group were screened to use as gasoline antiknock additives.

37. One new retanning agent was synthesized by adipic acid, diethyenetriamine, epichlorohydrin, phenol, and formaldehyde.

38. Objective : To establish a quantitative analysis method for phenol in Electrographic gel.

39. The static adsorption of humic acid and phenol from water in single and double component system onto ZH-02 resin of styrene-divinylbenzene modified by benzoyl group was carried out.

40. The synthesis technology of high basic value calcium sulfurized alkyl Phenate using dodecyl phenol as one of main materials were introduced in this paper.

41. Objective: Study on extraction of plasmid DNA with phenol - chloroform from clone.

42. Codeine has the same structure as morphine, but the phenol group masked as a methyl ether.

43. The phenol adsorption changes also from positive temperature effect to negative temperature effect with increase of SDS concentration when the temperature rises.

44. A novel monomer 2,6 - diphenoxybenzonitrile (DPOBN) was prepared by condensation of 2,6 -dichlorobenzonitrile with phenol in N - methyl pyrrolidone (NMP)in the presence of KOH and K2CO3.

45. The simultaneous analysis conditions of phenol, hydroquinone, hydroxyphenol and odi-hydroxybenzene mixture by HPLC were discussed.

46. There was synchronization in releasing among the three active ingredients. Conclusion The formula optimized could give the satisfactory release of peoniflorin, laetrile, and phenol.

47. Two kinds of activated carbon powder are obtained through foaming, carbonization, vapour activation and grinding from phenol resin and coal tar.

48. Methods: The content of polysaccharides was detected by phenol - vitriol colorimetry method.

49. Octyl phenol is an important fine chemical intermediate material, which is widely used in producing chemical products such as surfactant, bond, resin and industrial fiber.

50. Conclusion The method is simple, rapid and accurate. The method is suitable to determine the phenol content in calamine and menthol lotion.

51. AutoAnalyzer 3 Flow injection analysis ( FIA ) was used to determine volatile phenol in drinking water.

52. Phenol and acetone are both important materials for chemical engineering process, and Chinese phenol-acetone market is rather active in recent years.

53. In this study, it is proved that traditional TCA/Acetone method and phenol extraction method is not efficient enough to extract phosphoprotein from rice leaves.

54. The polycondensated resins have lighter color, the free phenol, compound bromide and alkalinity are lower.

55. When classic mesoporous aluminosilicates as catalysts, both phenol conversion and 2, 4 - DTBP selectivity are very low.

56. Methods: The polysaccharides was determined by colourimetry with sulfuric acid - phenol reagent.

57. Methods: Cultivate Ganoderma in glycyrrhiza waste residue, and determine the polysaccharose content by phenol - sulfuric acid reaction system.

58. This paper is introduced the industrial development situation, preparation and sell of octyl phenol, and is mainly introduced the synthetic route of resin process.

59. The special liquid antioxidant 2,6 di - tert - butyl - 4 - isobutyl phenol was elected by one of the antioxidants development direction.

60. Through the adsorbing experiment of phenol, the phenol - adsorption isotherm of the gangue - based adsorbent was obtained.