Journal of Analytical Methods in Chemistry / 2016 / Article / Fig 4

Research Article

Measurement of Total Free Iron in Soils by H2S Chemisorption and Comparison with the Citrate Bicarbonate Dithionite Method

Figure 4

The regression relationship between CBD-Fe content and the estimated total free iron under the experimental condition of CO and H2, respectively.
(a) CO existence
(b) H2 existence

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