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Soil Science Society of America Journal Abstract -

The Use of a Specific Ion Electrode for Determination of Bromide in Soils1


This article in SSSAJ

  1. Vol. 39 No. 6, p. 1223-1225
    Received: June 20, 1975
    Accepted: Aug 26, 1975

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  1. Arthur B. Onken,
  2. R. S. Hargrove,
  3. C. W. Wendt and
  4. O. C. Wilke2



Bromide has desirable characteristics for use as a tracer for NO3- in some soil studies. However, its quantitative determination in the presence of Cl-, which occurs in interfering quantities in many soils, requires lengthy procedures. Further, Br- interferes with the quantitative determination of Cl- for which concentrations may also need to be determined. To facilitate the use of Br- as a tracer in such tests, a procedure for the rapid and accurate determination of water-extractable Br- in the presence of Cl- and Cl- in the presence of Br- was developed. These quantitative determinations over a wide range of concentrations were accomplished by use of standard curves, interference curves, and successive approximations. Bromide added to soil over a wide range of concentrations was quantitatively recovered.

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