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• W2326057786 abstract "For determination of trace amounts of cobalt (II), a simple, sensitive and low cost method based on direct solvent microextraction (DSME) for preconcentration coupled with flame atomic absorption spectrometry was proposed. Firstly, 2-Nitroso-1-naphtol (2NP) as complexing agent with cobalt (II) to form an extractable complex which transfer from aqueous phase to an organic solvent. For this purpose, the effect of different parameters such as pH, concentration of ligand, type of buffer, kind and volume of organic solvent, extraction time, stirring rate of sample solution, temperature and ionic strength was investigated. Also, the effects of foreign ions were studied. In the optimized conditions, the maximum amount of complex of cobalt-2NP entered into the organic phase and separation of analyte from the matrix was achieved. Also, under the optimized chemical and instrumental conditions a linear calibration curve in the concentration range of 10-400 µg L-1, with detection limit of 0.20 µg L-1 and enrichment factor of 52.8 were obtained. The relative standard deviations for six replicate determination of 80, 160 and 300 µg L-1 of cobalt were 2.18 %, 1.73 % and 2.33 %, respectively. The method was successfully applied for determination of cobalt (II) in the natural and spiked water samples." @default.
• W2326057786 created "2016-06-24" @default.
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• W2326057786 date "2013-05-04" @default.
• W2326057786 modified "2023-10-17" @default.
• W2326057786 title "Application of Flame Atomic Absorption Spectrometry Combined with Direct Solvent Microextraction (DSME-FAAS) to Determine of Trace Amounts of Cobalt (II) as a Pollutant in Natural Water Samples" @default.
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• W2326057786 doi "https://doi.org/10.1080/22297928.2013.797631" @default.
• W2326057786 hasPublicationYear "2013" @default.
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