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      Comparative equilibration and online technique for determination of non-exchangeable hydrogen of keratins for use in animal migration studies.

      1 ,
      Isotopes in environmental and health studies
      Informa UK Limited

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          Abstract

          Stable hydrogen-isotope ratios (deltaD) of keratin provide a novel means for tracking geographical movements of birds and other species. Here we describe a rapid, low cost, analytical approach to facilitate online continuous-flow isotope-ratio mass spectrometry (CF-IRMS) deltaD analyses of keratins (120-160 samples per day) through the use of calibrated keratin working standards and "comparative equilibration" to correct for the effects of moisture on exchangeable hydrogen. It is anticipated that this analytical approach and CF-IRMS will greatly aid in providing cost effective and directly comparable deltaD results on keratins and feathers among various laboratories and researchers involved in animal migration studies.

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          Author and article information

          Journal
          Isotopes Environ Health Stud
          Isotopes in environmental and health studies
          Informa UK Limited
          1025-6016
          1025-6016
          Sep 2003
          : 39
          : 3
          Affiliations
          [1 ] Environment Canada, National Water Research Institute, 11 Innovation Blvd., Saskatoon, SK, Canada, S7N 3H5. len.wassenaar@ec.gc.ca
          Article
          10.1080/1025601031000096781
          14521282
          34f3ebe4-5c66-46d9-a3c9-8ecf1fe12e24
          History

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