January 1975
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The present article proposes a method for determination of normal C1 C7 fatty acids in the form of their aromatic amides by microthin layer chromatography on neutral aluminium oxide. Quantitative ultramicro analysis of the fatty acids, starting with acetic acid, is carried out with a densitometer. The sensitivity for acetic acid is 3 x 10-9 mole. It has been shown that lower fatty acids can be determined in such natural subjects as soil, water, and the bottom sediments of lakes.