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Spectrophotometric Determination of Copper(II) Following Collection on an Organic Solvent-Soluble Membrane Filter as the N,N-Diethyldithiocarbamate Complex

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Abstract

A highly sensitive, rapid and facile method is described for the determination of copper(Il). A small amount of copper(II) is quantitatively collected on a membrane filter made of cellulose nitrate as a colored complex with N,N-diethyldithiocarbamate without carrier substances. The complex, together with the membrane filter, is dissolved in N,N-dimethylformamide (DMF), and the absorbance of the solution is measured for the determination. The calibration curve was linear from 0.1 to 8.8 μg of copper(II) in 3.0-cm3 DMF. The apparent molar absorptivity of copper(II) was 1.20×104 dm3 mol−1 cm−1. The relative standard deviations at 1.2 and 6.0 ug of copper(II) were 4.3% (n=13) and 1.1% (n=12), respectively. The method was applied to the determination of copper in environmental certified reference material (NIES No. 1, Pepperbush) and water samples.

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Kan, M., Sakamoto, H., Nasu, T. et al. Spectrophotometric Determination of Copper(II) Following Collection on an Organic Solvent-Soluble Membrane Filter as the N,N-Diethyldithiocarbamate Complex. ANAL. SCI. 7, 913–917 (1991). https://doi.org/10.2116/analsci.7.913

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  • DOI: https://doi.org/10.2116/analsci.7.913

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