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211 The synthetic method of perfume 2 - methyl - 3 - methoxy pyrazine was investigated and better reaction conditions have been found.

212 The catalyst activity for degrading methyl orange was investigated by microwave induced oxidation process ( MIOP ).

213 The invention belongs to the chemical technology field, and discloses a method for preparing methyl ethyl ketone.

214 In this paper, the rate constant and equilibrium constant of the crack reaction of methyl silicane were obtained with the transition state theory and quantum chemistry calculation.

215 To the latter, the role of methyl oleate in influencing the partition of surfactant in oil phase and aqueous phase competes with its adsorption role at the interface.

216 Copolymerization products were fractionated by successive solvents extraction with boiling methyl ethyl ketone (MEK) and boiling tetrahydrofuran (THF).

217 Methyl isonicotinate was synthesized using isonicotinic acid and anhydrous methanol as raw materials in presence of solid super acid as catalyst.

218 The mode selective behavior in photodissociation of methyl iodide is illustrated.

219 The relative content of methyl and the relative content of methyl oleate the methanol - esterified diosgenin product.

220 The test data showed that the removal efficiencies of methyl orange could reach 96.24 %.

221 Methyl parathion hydrolase (MPH) was a novel member of phosphotriesterase.

222 Sodium methoxide used as catalyst for the synthesis of methyl formate by carbonylation of methanol was studied, and effect of three kinds of promoter was investigated.

223 The experimental method of triphenyl methyl radical, triphenyl methyl cation and triphenyl methyl anion were reviewed.

224 The green production processes in substitute of ACH mainly include isobutene processes, ethylene processes, isobutane processes and methyl acetylene processes, which will be discussed in this paper.

225 With methyl methacrylate the particle diameter increases linearly with conversion indicating particle aggregation.

226 Other: The dyewood is known as the suppression histidine decarboxylase(sentencedict.com), the catechu phenol - O - methyl shift enzyme action.

227 Large, predatory fish — such as tilefish, swordfish and king mackerel — tend to have higher levels of methyl mercury than do smaller fish because they're higher in the aquatic food chain.

228 The analytical method for sodium methyl mercaptide was established based on the reaction in quantity between methyl mercaptan and iodine at the base condition.

229 The main deactivation reason of catalyst in low temperature methanol synthesis is that CH 3ONa is transformed to weaker bases such as sodium formate and methyl carbonate.

230 The methyl acrylate emulsion was prepared in the anionic polyurethane emulsion.

231 In this paper, the cedrol methyl ether was synthesized by sodamide method.

232 Methyl thiazolyl tetrazolium(MTT) method was used to compare the ability of growth and proliferation between rat dental pulp stem cells and marrow mesenchymal stem cells.

233 The effects of HFE on lung cancer cell YTLMC-90 were proceeded by means of three assays as follows: Methyl thiazolyl tetrazolium (MTT) assay, cell double time analysis and colony forming assay.

234 From campholenic aldehyde , the sandalwood fragrance campholenyl methyl cyclohexanol was prepared, its structure is analyzed and identified.

235 Phenazine methyl sulfate was synthesized from this phenazine with a purity of above 98%.

236 Results Methyl isocyanate, chloride and oxide of Quercetin were prepared.

237 High-boiling silicone oil is methyl silicone that contains active methoxy, ethoxy groups , it easily cures film.

238 It can be concluded that the water uptake of cured polymer could be restricted by the incorporation of hydrophobic fluorene rings and methyl groups.

239 The method is simple, accurate and reproducible and it can be used for the determination of methyl salicylate in Gaultheria yunnanensis(Franch)Rehd.

240 The reflection spectrum of Methyl Red doped PMMA was measured and modified.