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Scientific Object Identifier: http://s-o-i.org/1.1/TAS-07-63-15
DOI: https://dx.doi.org/10.15863/TAS.2018.07.63.15
Language: English
Citation: Yurchenko OI, Chernozhuk TV, Kravchenko OA (2018) NEW STANDARD COMPOSITION SAMPLES, SURFACTANTS AND ULTRASOUND TREATMENT AT ATOMIC-ABSORPTION AND ATOMIC-EMISSION WITH INDUCTIVE CONNECTED PLASMA DETERMINATION OF CADMIUM AND COPPER IN OIL PRODUCTS. ISJ Theoretical & Applied Science, 07 (63): 112-118. Soi: http://s-o-i.org/1.1/TAS-07-63-15 Doi: https://dx.doi.org/10.15863/TAS.2018.07.63.15 |
Pages: 112-118
Published: 30.07.2018
Abstract: An influence of concentration of twin 20 and time of ultrasound treatment on value of analytical signal at atomic-absorption and atomic-emission with inductive connected plasma determination of cadmium and copper in oil products was studied. It was shown that using of our sample preparation increases sensibility in 1,5-2,0 times due to formation of the homogenous emulsions. Using of new standard samples based on cadmium and copper acetylacetonates maximally approximate the samples to the calibration solutions. This increases the precision of definitions. By varying the weight of the analyzed samples it was established that the method didn’t contain significant systematic errors. By the method “injected-found out” an accuracy of the received results was estimated. Coherence of the results, obtained by two independent methods, was estimated by F- and t-criteria. It was shown that dispersions are homogenous and results are distinguished not sufficiently. The distribution of results is justified by random distribution. We also estimated the limit of founding out of analytes. It was shown that our results are lower than literature data.
Key words: cadmium, copper, acetylacetonates of cadmium and copper, ultrasound treatment, twin-20, atomic-absorption and atomic-emission with inductive connected plasma spectrometry, oil products,analysis, metrological characteristics.
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