A leading manufacturer of research chemicals, metals and materials including high purity inorganics, organics and organometallics, precious compounds and catalysts, rare earth compounds and metals, labware and more.
URL: http://www.alfa.com/alf/laboratory_chemical_suppliers.htm in English [Translate]
Ocean Optics, Inc. manufactures fiber optic chemical sensors, miniature fiber optic spectrometers, light sources and probes for laboratory, process control and environmental measurement of absorbance, color and transmission
URL: http://www.oceanoptics.com/ in English [Translate]