A 5-Day Method for Determination of Soluble Silicon Concentrations in Nonliquid Fertilizer Materials Using a Sodium Carbonate-Ammonium Nitrate Extractant Followed by Visible Spectroscopy with Heteropoly Blue Analysis: Single-Laboratory Validation

Author： Sebastian Dennis   Rodrigues Hugh   Kinsey Charles   Korndörfer Gaspar   Pereira Hamilton   Buck Guilherme   Datnoff Lawrence   Miranda Stephen   Provance-Bowley Mary  

Publisher： AOAC International

ISSN： 1944-7922

Source： Journal of AOAC International, Vol.96, Iss.2, 2013-03, pp. : 251-259

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