Interactions of ammonia, aliphatic amines, hydrogen sulfide, and sulfur dioxide with copper tetra-tert-butylphthalocyanine (CuPc) in squalane were studied by spectrophotometry and gas liquid chromatography in the CuPc concentration range of 1·10–3—5·10–2 mol L–1. The sorption properties of the CuPc—squalane stationary liquid phases (SLPs) are governed by the physicochemical nature of the CuPc nanoaggregates in solution. The β-type nanoaggregates exhibit particularly high activity to hydrogen sulfide; the activities to primary and secondary amines are also high.