ICP-spectrometric determination of the total tin content in the water of the Azov and Black Seas

The paper considers the possibility of determining total content tin in various forms presence waters Azov and Black Seas, which differ salinity. Organotin compounds, when present waters, interfere with determination inorganic by direct injection ICP spectrometry. It is shown that before organotin microwave mineralization analyzed samples required, under a quantitative conversion to form ensured. highest efficiency decomposition water was achieved using oxidizing mixtures based on nitric acid (5.0 см3 HNO3; 4.0 HNO3 + 1.0 HCl и 3.0 2.0 H2О2). Limits for (LOQSn) solutions prepared deionized model sea different salinities have been established. According proposed scheme analysis ICP-AES, LOQSn values from Seas were 0.40 0.47 µg/dm3, respectively, sample. In ICP-MS also increases increasing salinity ranges 0.03 (deionized water) 0.45 μg/dm3 (model 18 ‰). developed made it possible determine tin, considering all its waters. Satisfactory convergence results analyzes after observed ICP-AES range 10.0 μg/dm3, 5.00 μg/dm3. found be 0.20 0.23 respectively.