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- W2088021455 abstract "A novel, simple, sensitive and effective method has been developed for selective extraction and pre-concentration of copper on N,N-(4-methyl-1,2-phenylene)diquinoline-2-carboxamide-naphthalene. After pre-concentration, copper was eluted from sorbent with hydrochloric acid, and then flame atomic absorption spectrometry (FAAS) was used for its determination. The effect of pH, sample flow rate and the volume and concentration of eluent on the recovery of the analyte was investigated and the optimum conditions were established. A pre-concentration factor of 400, and an adsorption capacity of 6.9 mg g(-1) of the solid-phase sorbent or 82.8 mg g(-1) of ligand was achieved using the optimum conditions. The calibration graph was linear in the range of 1.0-4000 ng mL(-1) with the detection limit of 1.0 ng mL(-1). A R.S.D. value of 2.4% was obtained by this method for 400 ng mL(-1) of Cu(2+) solution. This procedure has been successfully applied to separate and determine the ultra trace levels of copper in the environmental samples, free from the interference of some diverse ions." @default.
- W2088021455 created "2016-06-24" @default.
- W2088021455 creator A5023731418 @default.
- W2088021455 creator A5056040998 @default.
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- W2088021455 date "2009-09-01" @default.
- W2088021455 modified "2023-09-26" @default.
- W2088021455 title "Nano-level determination of copper with atomic absorption spectrometry after pre-concentration on N,N-(4-methyl-1,2-phenylene)diquinoline-2-carboxamide–naphthalene" @default.
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- W2088021455 doi "https://doi.org/10.1016/j.jhazmat.2009.02.077" @default.
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