methylene造句
(1) Where these materials have to be cleaned methylene chloride is the only chemical option once items are soiled.
(2) This removal is very effective because methylene chloride and other caffeine solvents evaporate at temperatures between 100 and 120 degrees.
(3) One compound based on methylene chloride also incorporates ammonium hydroxide to give it a characteristic smell.
(4) Objective To observe the photochemical effect of methylene blue (MB) on the inactivation of E. coli in blood and on biological functions of blood cells.
(5) Process of photocatalytic decomposition of methylene blue on cadmium sulphide was studied using cadmium sulphide nanoparticles as photocatalyst and tungsten as simulated visible light.
(6) Methods: Samples were extracted by methylene chloride , dehydrated by anhydrous sodium sulfate and determinated by GC - MSD.
(7) Two fresh gastrocnemius muscle specimens were warmed and flushed with warm 0.9%NaCl then injecting 0.1%methylene blue through the medial sural artery.
(8) An Efficient NH2SO3H-catalyzed direct alkylation of active methylene compounds with benzylic and allylic alcohols has been reported.
(9) The relative removal rate of methyl and methylene group showed the shape of M with the increase of temperature.
(11) Do not contact methylene chloride, acet ( like nail oil ), strong acid detergent.
(12) Objective:To evaluate the value of chromoscopy by methylene blue staining in diagnosis of precancerous lesions and identification the benign or malignant gastric ulcer.
(13) The rods are seen here with a methylene blue stain.
(14) This solution is then treated with either methylene chloride or ethyl acetate, which bonds with the caffeine.
(15) A fluorination catalyst for methylene fluoride production by gaseous phase fluorination, and its practical process areintrouduced.
(16) Keyes method was used to evaluate the effect of methylene blue on Spraague - Dawley mouse dental caries.
(17) The reactor and transfer line are rinsed with several small portions of methylene chloride.
(18) The hydroxyl value of epoxy-containing polyester was determined by analyzing acetification principle and using acetyl chloride as acetifier and methylene chloride as solvent.
(19) It shows that theoretically predicted chemical shifts of hydrogen atoms in methylene in seven-membered ring are in good agreement with experimental values.
(20) This paper reports the function of anhydrous potassium fluoride and acetonitrile in C-alkylation of active methylene group of acetoacetic ester.
(21) The main applications of DBU and DBN in organic synthesis, including elimination reaction, migration of double bond, condensation, cyclizationand active methylene reaction etc. were briefly reviewed.
(22) We use acute poisoning method to determine how the methylene blue affecting the Limnodilus hoffineisteri.
(23) The scavenging agent for scavenging the chewing gum residual consists of carbon disulfide, methylene dichloride, ethyl acetate, span-80, cyclohexanone, sodium dodecyl benzene sulfonate and water.
(24) Cyclic voltammetry was used to characterize the ssDNA immobilization and hybridization with its complementary DNA sequences by using methylene blue as indicator.
(25) Nowaday developments show that it can be drop in replacement of methylene chloride.
(26) The preparation and electrochemical characteristics of poly ( Eastman AQ 55 ) film incorporate with methylene blue was described.
(27) The sensitization of raw material and intermediate of pyrazosulfuron-ethyl was studied using guinea pig. The result indicated that ethoxy methylene cyanacetic ester is sensitive agent.
(28) The new method in the determination of negative ion surface-active agent is introduced, comparing with methylene blue method, it have merits of simple operation step and little dosage.
(29) The DET method qualitatively distinguishes the two hydrogen atoms in methylene , and the results for carbon are better than those determined by ah initio method.
(30) A new spectrophotometric method for the determination of trace nitrite was studied. The method is based on the diazo- reaction of methylene violet with nitrite in hydrochloric acid medium.
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