Flame ionization + methane converter chromatograph-ppb-ppmFID Product Description The FID series uses flame ionization detectors to measure helium (He), argon (Ar), hydrogen (H₂), nitrogen (N₂), oxygen (O₂), carbon dioxide (CO₂) or impurity gases in the air, including methane (...
ORTHOPure HDID-ppt-ppb-ppm FID Product Description HDID/HE series chromatographs use helium ionization detectors to measure helium (He), argon (Ar), hydrogen (H₂), nitrogen (N₂), oxygen (O₂), carbon dioxide (CO₂), and krypton (Kr) ) or trace impurity gases in xenon (Xe),...
We review here new developments in decreasing the catalyst loadings in palladium-catalyzed C-C bond-formation reactions to mol ppm or mol ppb levels. This decreases the cost of the catalyst and the toxicity of the reaction system, making the reaction more attractive to industry. The Heck ...