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Analytical chemistry

1908 Journal of the Chemical Society Abstracts  
and Hydrology, Q. M E I L I~E (J. I'l~ccrm. Chim., 1907, {vi], 26, 443--460).-A summary of the methods used in analysis for concentrating small quantities of substances which might otherwise escape detection. For instance, traces of lead in water are carried down completely by adding a little copper sulphate before passing hydrogen sulphide, and phosphoric and arsenic acids are precipitated completely in presence of ferric hydroxide. I n some cases, extraction by means of an immiscible solvent
more » ... immiscible solvent in a suitable apperntus gives good results. Strong hydrochloric acid extracts lithia from alkali chlorides, &c.
doi:10.1039/ca9089405061 fatcat:5irl6ornjnfd7ikvmpcy7tow2q