Abstract
The paper has proposed a new adsorbent for solid-phase extraction concentration of 2,4,6-trinitriphenol from aqueous objects of the environment followed by its determination in the concentrate by the method of highly performance liquid chromatography (HPLC). Silica modified by N-epoxypropylcarbazol was used as solid-phase extragent, which in the pH 1.5 ± 2.5 interval extracts up to 98% of the matter being analyzed. Sorbent capacity in terms of 2,4,6-trinitrophenol in the Henry area constitutes 5.3 mg/g, distribution coefficients reach values 7.9 × 104 cm3/g. Nitrophenols are quantitatively eluted in dimethyl sulfoxide, which makes it possible to determine them by the HPLC with a diode array detector at the level 18 μ/dm3.
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Original Russian Text © O.M. Ivanova, V.A. Raks, V.N. Zaitsev, 2014, published in Khimiya i Tekhnologiya Vody, 2014, Vol. 36, No. 6, pp. 504–515.
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Ivanova, O.M., Raks, V.A. & Zaitsev, V.N. Highly-effective liquid chromatographic determination of 2,4,6-trinitrophenol in surface waters after its selective solid phase extraction. J. Water Chem. Technol. 36, 273–279 (2014). https://doi.org/10.3103/S1063455X14060034
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DOI: https://doi.org/10.3103/S1063455X14060034