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ISO 6636-2:1981 Fruits, vegetables and derived products -- Determination of zinc content -- Part 2: Atomic absorption spectrometric method
standard by International Organization for Standardization, 10/01/1981
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The method consists is decomposing of organic matter by a dry or wet method and determing of the Zn + cation by a suitable spectrometer. For some liquid samples the determination may be carried out directly, without previous decomposition.