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Sulfur in Plant Materials by Digestion with Nitric and Perchloric Acid
Author(s) -
Blanchar R. W.,
Rehm George,
Caldwell A. C.
Publication year - 1965
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1965.03615995002900010021x
Subject(s) - perchloric acid , ashing , nitric acid , sulfur , chemistry , environmental chemistry , inorganic chemistry , organic chemistry , physics , quantum mechanics
A method for the determination of S in plant materials is described. The material is oxidized by nitric and perchloric acid using a heating block to reduce perchloric acid loss. The SO 4 content of the solution is determined turbidimetrically as BaSO 4 . The proposed method has been found to be more accurate and rapid than the conventional dry ashing procedures for the determination of S in plant material.