Environmental Monitoring and Assessment

, Volume 161, Issue 1–4, pp 229–236 | Cite as

Analysis of iodide and iodate in Lake Mead, Nevada using a headspace derivatization gas chromatography–mass spectrometry

  • James W. Dorman
  • Spencer M. SteinbergEmail author


We report here a derivatization headspace method for the analysis of inorganic iodine in water. Samples from Lake Mead, the Las Vegas Wash, and from Las Vegas tap water were examined. Lake Mead and the Las Vegas Wash contained a mixture of both iodide and iodate. The average concentration of total inorganic iodine (TII) for Lake Mead was ∼90 nM with an iodide-to-iodate ratio of ∼1. The TII concentration (∼160 nM) and the ratio of iodide to iodate were higher for the Las Vegas Wash (∼2). The TII concentration for tap water was close to that of Lake Mead (∼90 nM); however, tap water contained no detectable iodide as a result of ozonation and chlorine treatment which converts all of the iodide to iodate.


Iodine Iodate Lake water Drinking water Gas chromatography–mass spectrometry Derivatization 


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© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.Chemistry DepartmentUniversity of Nevada, Las VegasLas VegasUSA

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