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Soil Science Society of America Journal Abstract -

Precision in Pesticide Adsorption Measurements1


This article in SSSAJ

  1. Vol. 34 No. 2, p. 353-355
    Received: Oct 8, 1969
    Accepted: Nov 21, 1969

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  1. R. E. Green and
  2. V. K. Yamane2



The precision of solute adsorption measurements (based on change of concentration in a solution equilibrated with an adsorbent) depends upon the magnitude of the solution concentration change. Coefficients of variation for measurements of atrazine adsorption on soil were inversely related to the amount adsorbed. Such variation in precision is the consequence of the indirect method of determination rather than variable experimental technique. Unsatisfactory precision is common in adsorption measurements; improvement can sometimes be achieved by altering the soil:solution ratio to obtain larger concentration changes.

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