A Highly Sensitive Multicommuted Flow Analysis Procedure for Photometric Determination of Molybdenum in Plant Materials without a Solvent Extraction Step

Figure 2

Effect of the concentration of the reducing agent. Curves a and b correspond to the blank and a 150 μgL⁻¹ Mo (VI) standard solution, respectively. Experimental conditions: 0.5 mol L⁻¹ SCN⁻; seven sampling cycles; time intervals to insert sample and SCN⁻ solution 2.0 and 1.0 s, respectively; pumping rate at 50 μLs⁻¹.