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Drop extraction preconcentration of organochlorine and aromatic impurities with carbon tetrachloride |
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| Authors: | V. A. Krylov E. V. Pylova O. Yu. Chernova G. M. Lizunova A. V. Krylov |
| Affiliation: | (1) Department of Chemistry, Joint Analytical Laboratory of Nizhni Novgorod State University and SHIMADZU, pr. Gagarina 23, Nizhni Novgorod, 603950, Russia;(2) Institute of Chemistry of High-Purity Substances, Russian Academy of Sciences, ul. Tropinina 49, Nizhni Novgorod, 603950, Russia |
| Abstract: | A drop version of the extraction preconcentration of organochlorine and aromatic impurities from water is developed. One microliter of carbon tetrachloride is used as an extractant. The distribution and preconcentration coefficients of impurities are determined. Factors affecting the stability of the extractant drop are studied. The limits for the gas-chromatographic detection of the impurities with their drop preconcentration are (2–5) × 10?5 mg/L. |
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