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This article in SSSAJ

  1. Vol. 33 No. 3, p. 478-479
    Received: Dec 23, 1968
    Accepted: Feb 19, 1969

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Hydroxylamine Hydrochloride as a Reducing Agent for Atomic Absorption Determinations of Manganese in Dry-Ashed Plant Tissue1

  1. R. P. White2



Hydroxylamine hydrochloride plus 1N HCl adequately reduced and dissolved the difficulty soluble oxides of Mn formed in dry-ashed plant samples, thus eliminating the need for treatment with hot acid. Data are presented comparing the Mn, determined by atomic absorption, and the K and Mg, determined by flame photometry, in plant sample digests prepared by nitricperchloric acid digestion, by dry ashing plus boiling with 6N HCl, and by dry ashing plus hydroxylamine hydrochloride in 1N HCl at room temperature.

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