Evaluation of Proximate, Phytochemical, and Heavy Metal Content in Black Cumin and Fenugreek Cultivated in Gamo Zone, Ethiopia

Table 1

Series of working standard solutions of metals.

S. no.	Metals	Series (in μL)
1	Fe	50, 150, 250, 350, and 450
2	Zn	50, 150 L, 250, 350, and 450
3	Cr	50, 150, 250, 350, and 450
4	Cu	125, 250, 375, 500, and 625
5	Ni	125, 250, 375, 500, and 625
6	Mn	50, 100, 150, 200, and 250
7	Co	25, 125, 250, 375, and 500
8	Cd	25, 125, 250, 375 L, and 500
9	Pb	5, 10, 15, 20, and 25