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Rapid Determination of Sulfur in Organic Compounds by the Tin(II)-Strong Phosphoric Acid Reduction MethodOhashi, Shigeru · Bulletin of the Chemical Society of Japan · 1955
The gravimetric semi micro determination of phosphorous as quinoline phosphomolybdate, in organic compounds: T.R.F.W. Fennell and J.R. Webb, Talanta, 2, 105–108 (1959)1959