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Mn was used as an internal standard for measuring Fe by atomic absorption. A standard mixture containing 2.00 Hg/mL Mn and 2.

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Soation A- ke UR the Beert ws. for absoption, we atomlc A Absorbancu COncentration conlant Wle for afpy Each &lement Are hreQ.S (Ke) Ckmn) 05 (125) KR Kmn 05 Kre 5 2 S4oD : 0.84 have ND we n the mitue 0uG Kfe, CFe 194 l0 00 Kre eee 0.I1G O 1qt Eee uCre Can) 0.516 Cfe atual deltrmine ths CUe CFe Catual) Ete(atal) mota Conering t0 .stG AtD Me 55 ( -6 SS.8 lo 32 M. Mre (0.3a

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