FIELD: chemistry.
SUBSTANCE: present invention refers to the field of analytical chemistry, particularly to the analysis of pure salts solutions containing iron (III) in very small concentration. The method includes complexation of iron (III) with glycilaluminon in subacid media with adding to the iron (III) solution having pH 3.6 - 6.2 of 280 - 340-fold glycilaluminon amounts, water up to total volume 10 ml and 0.03 - 0.2 ml of surfactant solution obtained by adding of water up to 100 ml to 0.2 ml of monoalkenyl phenyl ether of polyethyleneglycol with following heating of mixture on water at temperature 80 - 98°C during 3-8 min.
EFFECT: increase of assay sensitivity.
1 ex
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|
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