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ELEMENTS Ni, Fe, Mn, P, Cu, As ABSTRACT Determination of oligo-elements and toxic elements in infant formula REAGENTS REQUIRED Nitric acid sp.gr. 1 .41 Ammonium nitrate 10 g/l Hydrochloric acid sp. gr. 1.19 Reduction solution KI 1M + ascorbic acid 10% W/V Sodium borohydride (III) solution: 1 % m/V stabilized with 0.1% m/V sodium hydroxide
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