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Undergraduate students investigate the sulfur isotope record in the Johnston Lab

What do sulfur isotopes reveal about the composition of the early atmosphere? Five undergraduates set out to explore this question as part of a short-term research project in the Johnston Lab this January. Over the course of three weeks, the students dug into geochemical data as a way to hone their statistical analysis and data visualization skills, and to get a taste for the kinds of questions and techniques involved in Earth science research.... Read more about Undergraduate students investigate the sulfur isotope record in the Johnston Lab

A very short tribute to the mass spec

In the Johnston Lab, a lot of research depends on the ability to make very precise measurements of very small amounts of stuff. So, for this inaugural blog post, it seemed only fitting to spotlight the instruments that make the lab’s research (and the research of many other labs in many other fields) possible. We’re pleased to present an ultra-abbreviated history of mass spectrometry -- a word that, no matter how many times you say it, will always sound like it has too many R’s.... Read more about A very short tribute to the mass spec