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Ion exchange method for rapid determination of alkalinity of water-soluble tea ash containing high levels of manganese

, : Ion exchange method for rapid determination of alkalinity of water-soluble tea ash containing high levels of manganese. Journal - Association of Official Analytical Chemists 63(3): 460-461

An ion exchange method to determine the alkalinity of water-soluble tea ash containing high levels of manganese is described. A chromatographic column containing a strong cation exchange resin (20-50 mesh) in Na+ form, with a bed volume of 5 mL is used. The present ion exchange method is compared to pH titrations and also to the official AOAC methods (31.012, 31.015, 31.016). Results with the new method are accurate and precise.


PMID: 7430031

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