Abstract
Abstract An atomic absorption method is proposed by which boron can be analyzed in plant materials at concentrations of 3 μg/g o r greater. With the exception of fluorides, no interferences were observed. Results obtained from the proposed method compared favorably with AOAC 6.073. Recoveries of boron ranged from 93 to 107%. This method involves dry ashing the plant sample and treating the ash with 5N HCl. Boron is extracted from this solution into an organic phase of 2-ethyl-l,3-hexanediol in methyl isobutyl ketone. The organic layer is aspirated into the flame without decantation for the determination by atomic absorption.
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