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Lithium chloride solution as an extraction agent for soils
Author(s) -
Husz Georg
Publication year - 2001
Publication title -
journal of plant nutrition and soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 1436-8730
DOI - 10.1002/1522-2624(200102)164:1<71::aid-jpln71>3.0.co;2-1
Subject(s) - chemistry , lithium chloride , extraction (chemistry) , lithium (medication) , chloride , nuclear chemistry , chromatography , inorganic chemistry , organic chemistry , endocrinology , medicine
Abstract The author proposes the extraction of mobile (”available”) ions including heavy metals by means of a 0.4 M solution of LiCl. The accuracy and precision of the method are demonstrated and the results compared with the CaCl 2 and BaCl 2 extraction. The suspension pH of non‐calcareous samples remains almost constant during LiCl‐extraction but changes considerably with NH 4 NO 3 ‐ and NH 4 ‐acetate. The results of the LiCl‐ and the CaCl 2 ‐extraction were closely correlated. The same was true for the relative cation distribution on the sorption complex compared to the BaCl 2 ‐extraction. A series of arguments emphasize and substantiate the advantages of the use of neutral salts, especially LiCl, for extraction.