Spectrophotometric method for determination of Cu(II) in the trace quantities was developed by using piperazine as ligand in ammonium acetate medium. The Procedure developed was applied for the estimation Cu(II) in microgram quantities in the samples of alloys and the method was found to be simple, rapid and comparable to routine analytical methods for trace level analysis of metal ions in environmental samples in any laboratory where sophisticated and expensive instruments are not available. UV visible spectrophotometer is cost effective and available in almost all laboratories. The complexes of piperazine in aqueous solutions are not reported so far and this is the first attempt in this area of spectrophotometric analysis.
International Letters of Chemistry, Physics and Astronomy (Volume 13)
C. Kavitha et al., "Spectrophotometric Determination of Copper as Copper Piperazine", International Letters of Chemistry, Physics and Astronomy, Vol. 13, pp. 205-209, 2013