METHOD OF DETECTION OF POLLUTION SOURCE Russian patent published in 1994 - IPC

FIELD: ecological investigations. SUBSTANCE: samples are taken at location of pollution source and in place distant from it. Vibroextraction of samples is conducted with the use of organic solvent for 5-20 min. Sample of extract is analyzed with gas chromatographer. By chromatograms relative concentration and N-dimensional vectors for each sample I₁,I₂ and angle between vectors I₁,I₂ are computed with realization of condition , where a is deviation of ratio of lengths of vectors from one and Δa and Δ∠I₁I₂ are errors in determination of corresponding values. Source of pollution and sum of components of analyzed sample are close. EFFECT: reduced time and improved accuracy of detection of pollution source. 4 tbl