A 10.0 g plant sample, digested it with acid, added a color developing agent, and finally diluted it to 100 mL and the a

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A 10 0 G Plant Sample Digested It With Acid Added A Color Developing Agent And Finally Diluted It To 100 Ml And The A 1 (63.07 KiB) Viewed 34 times

A 10.0 g plant sample, digested it with acid, added a color developing agent, and finally diluted it to 100 mL and the absorbance of this solution was obtained. Nickel (mg/L) Absorbance 0.000 0.000 0.005 0.062 0.015 0.205 0.030 0.356 0.045 0.522 0.070 0.732 Sample 0.168 a. If the accepted amount of Ni in cowpea is 0.22-10.3 mg/kg, is Ni deficient or toxic? b. If you are the consultant, what action should you suggest for the plantaion?