Abstract
A procedure for sensitive determination of rocket kerosene in water is described; it includes the dispersive liquid–liquid microextraction of analytes followed by their separation and determination by gas chromatography mass spectrometry in the mode of chromatogram registration against selected ions (m/z: 67, 81, 85, 95, 136, 137, 174, 183, and 193). The effect of the nature and volume of disperser and extraction solvents, salt additives, and the extraction duration on the efficiency of extraction of analytes is studied. The detectable concentration range is 0.005–0.05 mg/L. The detection limits (S/N = 3) of kerosene RG-1 and T-1 are 0.0015 and 0.0022 mg/L, respectively. The repeatability of the measurement results for the above range varies from 16 to 9% (n = 3); the intermediate precision varies from 20 to 12% (n = 5).
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Original Russian Text © T.A. Bolotnik, A.D. Smolenkov, S.D. Yartsev, O.A. Shpigun, 2015, published in Zavodskaya Laboratoriya, Diagnostika Materialov, 2015, Vol. 81, No. 1, pp. 6–11.
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Bolotnik, T.A., Smolenkov, A.D., Yartsev, S.D. et al. Application of gas chromatography mass spectrometry with preliminary dispersive liquid–liquid microextraction for the determination of low contents of rocket kerosene in water. Inorg Mater 52, 1359–1364 (2016). https://doi.org/10.1134/S0020168516140028
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DOI: https://doi.org/10.1134/S0020168516140028