Extractive Spectrophotometric Determination Of Copper Research Articles

Extraction-spectrophotometric determination of copper(II) with diammonium ethylene-1, 2-bis(phenyldithiocarbamate)

Extraction-spectrophotometric determination of copper(II) with diammonium ethylene-1, 2-bis(phenyldithiocarbamate)

Benzothiazole-2-aldehyde-2-quinolylhydrazone as a reagent for the extractive spectrophotometric determination of copper (II)

Benzothiazole-2-aldehyde-2-quinolylhydrazone (BTAQH) was used for the spectrophotometric determination of trace amounts of copper(II) after the extraction process. Copper(II) reacts with BTAQH at pH 8.3–12.6 to form a water-insoluble 1:2 complex, which can be extracted with many kinds of organic solvent. The extracted species with benzene has an absorption maximum at 523 nm and obeyed Beer's law over the range 0.09 to 0.75 ppm of copper. The molar absorptivity is 7.50 × 10 4 M −1 cm −1 at 523 nm. The spectral properties of the copper(II) complexes with some tridentate hydrazones containing benzothiazole ring as a functional group were also discussed.

Extraction-spectrophotometric determination of copper in tantalum and niobium metals with zinc dibenzyldithiocarbamate

Extraction-spectrophotometric determination of copper in tantalum and niobium metals with zinc dibenzyldithiocarbamate

Extraction-spectrophotometric determination of copper with LIX-64N

Extraction-spectrophotometric determination of copper with LIX-64N