Evaluation of Sampling and Analytical Errors in the Determination of Manganese in Soils |
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Authors: | Deming Dong Xianlei Zhu Bin Yang Miao Liu |
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Institution: | Department of Environmental Science, Jilin University, Changchun, 130023, The People's Republic of China |
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Abstract: | Sampling variances and analytical variances were estimated in a study of five chemical forms of Mn in nine soil types from a greenhouse experiment. A sampling and analytical quality control scheme and a robust analysis of variance were used for this purpose and proved appropriate. The resulting statistics were then subjected to an assessment of analytical precision and sampling precision according to certain criteria. The results showed that the sampling variances and analytical variances in this experiment were good enough to describe the natural geochemical variances. |
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