Measurement of Total Free Iron in Soils by H<sub>2</sub>S Chemisorption and Comparison with the Citrate Bicarbonate Dithionite Method

<div>The typical H<sub>2</sub>S breakthrough curve and breakthrough point.</div>

Journal of Analytical Methods in Chemistry

Figure 1: Measurement of Total Free Iron in Soils by H<sub>2</sub>S Chemisorption and Comparison with the Citrate Bicarbonate Dithionite Method 