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The determination of very small amounts of selenium in plant samples with 2,3-diaminonaphthalene has been investigated. Losses of selenium are prevented by a controlled wet-oxidation procedure in a silicone bath. A method is proposed for the determination of selenium in plant materials at levels as low as 0·005 p.p.m. in dried material.
R. J. Hall and P. L. Gupta, Analyst, 1969, 94, 292 DOI: 10.1039/AN9699400292
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