Anal. Chem. 2001, 73, 4145-4153 A Bacterial Method for the Nitrogen IsotopicAnalysis of Nitrate in Seawater and Freshwater
D. M. Sigman,*,? K. L. Casciotti,? M. Andreani,? C. Barford,§ M. Galanter,? and J. K. Bo1hlke^
Department of Geosciences, Guyot Hall, Princeton University, Princeton, New Jersey, 08544, Magiste`re de Sciences de la
Terre, E? cole Normale Supe′rieure de Lyon, 46 Alle′e d'Italie, Lyon, France 69364, Department of Earth and Atmospheric
Sciences, Harvard University, Cambridge, MA 02138, and U.S. Geological Survey, 431 National Center, Reston, VA 20192
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