N. Rajput et al., SPECTROPHOTOMETRIC DETERMINATION OF COPPER(II) USING CUPRON IN THE PRESENCE OF BRIJ 35, Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 33(1), 1994, pp. 88-90
An aqueous spectrophotometric method for the estimation of nanogram qu
antities of copper (II) using cupron in the presence of Brij 35 is dev
eloped. The molar absorptivity of the complex is 66000 1 mol-1 cm-1 at
pH 8 and wavelength 445 nm and the Beer's law is obeyed upto 7 ppm. T
he method is free from the interferences and has been successfully emp
loyed in the analysis of alloys and water.