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Company Name:Sigma-Aldrich Tel:021-61415566 800-8193336 Products Intro:Product Name:Petroleum CB Index:80 Related Information:Catalog(51456) Company Name:Shanghai Yihe Biological Technology Co., Ltd. Tel:17721395025 Products Intro:Product Name:Naphtha in Dichloromethane ...
公司名称: SIGMAALDRICH 联系电话:800 558-9160 国籍:美国 产品介绍:英文名称:Petroleum etherCAS:101316-46-5纯度:bp ~60 °C CB指数:87 相关信息:产品目录(6773) 公司名称: SIGMA 联系电话:800 736 3690 (Orders) 国籍:瑞士 产品介绍: CB指数:91 相关信息:产品目录(6896) 公司名称: Service Chemical...
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Petroleum benzine boiling range 40-80°C EMPLURA®; CAS Number: 64742-49-0; Synonyms: Petroleum ether,Petroleum spirit, Petroleum ether at Sigma-Aldrich
tertiary flooding; whereas oil recovery rates of the nanofluid prepared from SiO2nanoparticles of the prior art (produced by dissolving SiO2nanoparticles in water, the final concentration of SiO2nanoparticles is 0.01 wt %, and the SiO2nanoparticles are purchased from Sigma Aldrich) is only 1.6-4.45%...
Ethidium bromide (EB), sodium N,N-dimethyldithiocarbamate hydrate (DMDT), and sodium N,N-diethyldithiocarbarnate hydrate (DEDT) were purchased from Sigma-Aldrich. Tris-(hydroxymethyl)aminomethane (Tris buffer) (Merck), adenosine-5′ -monophosphate disodium salt (5′-AMP), cytidine-5′-monopho...
These rela- tively volatile mobile phases are easily desolvated and thus re- sult in enhanced LC-MS sensitivity relative to traditional re- versed-phase chromatography on C18 stationary phases.Timothy JonesMarket Segment Manager
(Germany). Analytical standards of fluorene and anthracene were obtained from Sigma Aldrich. Ethanol and dichloromethane (HPLC grade) were acquired from Fisher Chemical. N-Hexane (HPLC grade) was obtained from Sigma Aldrich. A cloth fiber with a length of 8 cm was used to knot the sorbent ...
preparation of dihydrocarbylphosphinoacetic acids from an alkyl ethnyl ether in accordance with this invention. Essentially all lab-grade reagents used in the preparations described in this example had been supplied by Aldrich Chemical Company, a subsidiary of Sigma-Aldrich Corporation, Milwaukee, Wis...