Paints and varnishes. Test methods of metal content. Determination of 'soluble' hexavalent chromium content of pigment portion of the liquid paint or the paint in powder form. Diphenilcarbazide spectrophotometric method
Food products, food raw materials. Method of determination of the sulfonamides, nitroimidazoles, penicillins, amphenicols by high performance liquid chromatography - mass spectrometry
