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Precision in Pesticide Adsorption Measurements
Author(s) -
Green R. E.,
Yamane V. K.
Publication year - 1970
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1970.03615995003400020048x
Subject(s) - adsorption , atrazine , chemistry , accuracy and precision , analytical chemistry (journal) , pesticide , environmental chemistry , soil science , environmental science , biological system , mathematics , statistics , ecology , biology
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.