Liquid chromatography - mass spectrometry (LC-MS) combines two approaches to separate and identify molecules or compounds present in a sample. High performance liquid chromatography (HPLC) separates ...

Engineers developed a membrane that filters the components of crude oil by their molecular size, an advance that could dramatically reduce the amount of energy needed for crude oil fractionation.

The U.S. chemical industry includes producers of industrial gases, large-volume commodity chemicals and polymers, chemical products for agricultural and medicinal uses, and performance-targeted ...