化学Alexa排名

226. Acdlabs.com/products/

网站简介:Offers programs for chemists and educators in chromatography, NMR, IR, UV, MS, modeling, and physicochemical property prediction. Includes technical FAQ, database login, US contact and profile of company in Toronto, Ontario.

227. Separationsnow.comseparationsnow.com

网站简介:Portal addressing HPLC, hyphenated techniques, GC, electrophoresis, genomics and other methods, from Wiley.

228. Education.jlab.org/itselemental/ele013.html

网站简介:Basic physical and historical information.

229. Gmi-inc.comgmi-inc.com

网站简介:Sells and repairs new, pre-owned, and refurbished analytical laboratory, clinical laboratory, hospital laboratory, biotechnology, and general laboratory instrumentation. [English, Espanol]

230. Chem1.com/acad/webtext/elchem/

网站简介:A comprehensive, in-depth tutorial for college-level General Chemistry, intended to supplement or replace standard textbook treatments.

231. Jmol.sourceforge.netjmol.sourceforge.net

网站简介:Open source molecule viewer written in Java. It runs as a standalone application and as a web browser applet.

232. Ise-online.orgise-online.org

网站简介:International society with two meetings per year.

233. Www-chem.ucsd.eduwww-chem.ucsd.edu

网站简介:Department of Chemistry and Biochemistry.

234. Knauer.netknauer.net

网站简介:HPLC, Simulated Moving Bed (SMB) and Osmometry. Knauer manufactures pumps, detectors, columns, switching valves, and chromatography data systems.

235. Chem.usc.educhem.usc.edu

网站简介:Chemistry Department and ChemWeb.

236. Sensorex.comsensorex.com

网站简介:Manufacturer of pH, ORP, conductivity and dissolved oxygen sensors and electrodes for portable, laboratory, and industrial process applications.

237. Education.jlab.org/itselemental/ele006.html

网站简介:Basic physical and historical information.

238. Wavefun.comwavefun.com

网站简介:Producer of spartan, a quantum chemical calculation program with nice visualization opportunities.es.

239. Chem.ed.ac.ukchem.ed.ac.uk

网站简介:Staff, research, undergraduate admissions, graduate school, positions, events, news, and facilities.

240. Organic-chemistry.org/Highlights/

网站简介:Free online journal which publishes short reviews of organic, bioorganic, organometallic and microwave chemistry, total synthesis of natural products and multi component reactions.

241. Learnchem.netlearnchem.net

网站简介:Offering tutorials and interactive tests for collegiate introductory level chemistry as well as AP Chem.

242. Mdpi.com/journal/molecules

网站简介:E-journal of synthetic and natural products chemistry.

243. Chemistry.rice.educhemistry.rice.edu

网站简介:Faculty, research interests, descriptions of graduate and undergraduate study, seminars, and courses offered.

244. Chem.uh.educhem.uh.edu

网站简介:Contains faculty, staff, research, news, web services and undergraduate and graduate information.n.

245. Magritek.commagritek.com

网站简介:Portable, low-field NMR Instruments and Prospa software. Also sell earth's field NMR system and Rheo-NMR accessory.

246. Chem.ubc.cachem.ubc.ca

网站简介:Undergraduate and graduate programs; research spans analytical, biological, environmental, inorganic, materials, organic, physical, and theoretical chemistry.

247. Chem-astu.ruchem-astu.ru

网站简介:Describes scientific work and educational programs and lists group publications. In Russian and English.

248. Cnchemicals.comcnchemicals.com

网站简介:Data provider and consulting business for China, Asia and Global market covering agriculture, life science, chemicals and energies. Products include data & databases and their derived products like reports, newsletters. Consultancy and events in the above sectors are also engaged.

249. Mistralni.co.ukmistralni.co.uk

网站简介:Suppliers of a range of pure chemicals in various sizes.

250. Eyesopen.comeyesopen.com

网站简介:Provides software and toolkits for structure-based drug design.