Mallory Montgomery makes her New York Times Crossword debut, in collaboration with Zhou Zhang. By Will Shortz Adrianne Baik gets into character. By Sam Corbin One way or another, you’ll solve Paul ...

THE performance of a fractionating column recently constructed and used in this Department prompts us to place on record its chief characteristics. The column is packed with miniature (1/16 in.) ...

RESEARCHERS at Massachusetts Institute of Technology (MIT) have developed a membrane they believe could replace energy-intensive distillation processes to fractionate crude oil in refineries. The ...

A new MIT-developed membrane separates crude oil components by size, not heat, offering a potential 90% energy savings and a significant reduction in CO₂ emissions. MIT researchers have developed a ...

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.

This article introduces a multi-step preparative purification workflow for synthetic peptides using liquid chromatography–mass spectrometry (LC–MS). The process involves optimizing separation ...