Top articles include a new “GC Connections” article on maintenance practices for modern capillary gas chromatography (GC) systems, an interview on rapid per- and polyfluoralkyl substances (PFAS) ...

Although present in very small amounts, selenium (Se)-based compounds play important roles in protecting the body from oxidative stress, regulating thyroid hormones, strengthening the immune system, ...

Humans have found lead useful for thousands of years, but the metal's toxic effects didn't become well known until the 20th century. Now, using historical hair samples, researchers have shown that ...