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Manufacturers of electrical and electronic goods demand reliable verification, testing, and screening technologies for compliance with Worldwide Restriction of Hazardous Substances (RoHS) regulations. An update to RoHS, known as RoHS II, Medical RoHS, or RoHS Recast, deals with the same hazardous...

Primary XPS region: Br3d Overlapping regions: Na2s Binding energies of common chemical states:, Experimental information N/A Interpretation of XPS spectra Br3d peak has overlapping spin-orbit components (Δ=1.04eV, intensity ratio=0.671)., General comments Not observed as element.

Combustion ion chromatography (IC) measures total halogens (fluorine, chlorine, bromine, iodine) and sulfur in difficult to analyze solid, gas, and liquid samples. Determination of these analytes is essential because they are: Corrosive, which can damage industrial equipment, poison catalysts, and...

Disinfection of drinking water, swimming pool water, and wastewater is required to protect the public from pathogenic microorganisms such as bacteria and viruses. Disinfection byproducts (DBPs) are produced when disinfectants, such as chlorine, chloramines, chlorine dioxide, and ozone, react with...

Organomagnesium halides of the general structure R-Mg-X, with R = alkyl, alkenyl or aryl and X = halogen, are called “Grignard” reagents after their inventor, chemist Victor Grignard. Grignard reagents are highly reactive and react with most organic compounds.

As hydraulic fracturing or fracking has burgeoned, so have speculations about itsenvironmental impact. Both citizens and government officials have questioned whether fracking couldcompromise our drinking water sources.

Have questions about terminology related to XRF and LIBS? Our team of experts have put their heads together to provide you with a quick, instant reference to help answer all your questions about x-ray fluorescence (XRF) and laser induced breakdown spectroscopy (LIBS).

Explore our collection of organic chemistry resources to stay up to date with the latest developments in organic synthesis. Browse our collection featuring articles, videos, and posters with particular focus on the Named Reactions.

The Maybridge fragment collection helps accelerate structure-based lead identification and includes 30,000 chemical fragments. It features the following: The Maybridge fragment collection was developed to meet the needs of researchers by harnessing the quality and structural diversity you have come...

The periodic table of the elements was first introduced in the mid-19th century by Dmitri Mendeleev, who originally represented the elements as periodic functions of their atomic weights. As more elements were discovered, they were arranged in the periodic table in numerical order according to their...

Thermo Fisher Scientific has a strong commitment to supporting laboratories charged with the task of researching and monitoring environmental pollutants. Our commitment ensures high productivity, added value solutions for some of the most challenging environmental pollutant determinations.

Drinking water requires testing for over 90 possible contaminants according to U.S. EPA regulations in the Safe Drinking Water Act (SDWA). Using approved analytical methods, scientists in municipal water facilities and contract labs routinely monitor for pollutants such as inorganic anions and...