TITLE

Fiber optic-linear array detection spectrophotometry in combination with dispersive liquid-liquid microextraction for preconcentration and determination of copper

AUTHOR(S)
Ezoddin, Maryam; Shemirani, Farzaneh; Jamali, Mohammad
PUB. DATE
February 2010
SOURCE
Journal of Analytical Chemistry;Feb2010, Vol. 65 Issue 2, p153
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In this research, simple, rapid and efficient method, dispersive liquid-liquid microextraction (DLLME) combined fiber optic -linear array detection spectrophotometry (FO-LADS) was developed using a cylindrical micro-cell for preconcentration and determination of Cu(II) in samples. DLLME and FO-LADS methods have good matching conditions for being combined since FO-LADS is a suitable method for the determination of analytes in low volume of the remained phase obtained after DLLME. Molar absorptivity of complex Cu with (4-benzylp iperidineditiocarbamate potassium salt) (BPDC) was determined as 2.75 × 104 L mol-1 cm-1 at 7nmax = 436 nm. Under the optimum conditions the calibration graph was linear in the rage of 2–70 fug L-1 with detection limit of 0.34 fug L-1. The proposed procedure was successfully applied to the determination of Cu(II) in real water samples and human urine sample.
ACCESSION #
48356804

 

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