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WHOI marine chemist Elizabeth Kujawinski (left) and research associate Melissa Kido Soule monitor a mass spectrometer that can detect and identify molecules in low concentrations within a mixture of compounds. With colleague Krista Longnecker, they developed methods using this instrument to detect the chemical dispersant Corexit in samples of water from the Gulf of Mexico after the Deepwater Horizon oil spill. (Photo by Tom Kleindinst, Woods Hole Oceanographic Institution)[back]
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