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0210U001468,
0107U000660
,
Improvement of the metrological characteristics of the analytical atom absorption spectroscopy with the help of surface active substances and metals beta-diketonates
Bygaevsky Aleksandr, Urchenko Oleg,
17-02-2010
Kharkov National University named after V.N. Karazin
Objects of investigation - model solutions containing Zink, Iron and Manganese ions; modifying dopants on the base of surface active compounds. The aim of the work - increasing sensitivity of the atomic absorption detection of Zink, Iron and Manganese by chemical modification. Methods of investigation and equipment - atomic absorption spectroscopy, C-115-M1 device; inductively coupled plasma atomic emission spectroscopy, TRACE SCAN Advantage device (USA). The new environments on the base of surface active compounds were obtained. The peculiarities of the anionic, cationic and non-ionic surface active compounds, mineral acids and miscellaneous components and their concentrations effect on the analytical signal magnitude were investigated. The projects of the atomic absorption methods for Zink, Iron and Manganese detection in food products, industrial air and waters of different origin were elaborated. The metrological characteristics of the methods implied were estimated, their advantages over the already existed ones were outlined. The metals ?-diketonates were shown to satisfy all the requirements to the composition standard samples: the mean deviations of the detection of Zink, Iron and Manganese in ?-diketonates do not exceeded 0.3%; the samples are homogeneous, stable both in the solid state and in dilute solutions; they are enough soluble in water and in organic solvents. The projects of the atomic absorption detection of Zink, Iron and Manganese in petrol products and extractive atomic absorption detection of Iron in deionized water with the use of the metals acetylacetonantes as the metals standard samples were developed. The advantages of this approach was shown. The standard samples of several enterprises were certified by the Zink, Iron and Manganese acetylacetonantes.
Тітова Наталія Володимирівна
Юрченко Олег Іванович
2020-04-02
Updated: 2025-12-08
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