Ecological Systems and Devices Annotation << Back Stepwise Injection spectrophotometric determination of watersoluble forms of copper in the workplace air aerosols Fulmes K.S. Freze E.A. Bulatov A.V. Moskvin L.N. In the present investigation, a new automatic technique has been developed for the determination of copper water-soluble forms in the workplace air aerosols assuming the on site adhesion isolation of copper aerosols on a fiberglass column with subsequent photometric determination of the analyte with 4-(2-pyridylazo) rezorcynol (PAR) using Stepwize Injection Analysis. This reagent in acidic medium (pH 1…1,3) is characterized by high selectivity against copper (II) and no need for the extraction of an analytical form. Because of these features the colour-forming reaction of copper (II) with PAR is characterized by rapidity and high selectivity. The concentrations range is 1,5…15 µgL–1. The limit of detection is 0,5 µgL–1.Volume sample is 30 L. Time of sampling 15 min. Time of SWIA analysis – 5 min. Keywords: Stepwize Injection Analysis; air aerosols; copper; photometric; 4-(2-pyridylazo) rezorcynol. Contacts: E-mail: kristina-fulmes@mail.ru Pp. 03-09.