RESONANCE RAYLEIGH-SCATTERING METHOD FOR THE DETERMINATION OF TRACE AMOUNTS OF MOLYBDENUM WITH THIOCYANATE-BASIC TRIPHENYLMETHANE DYE SYSTEMS

Studies on the resonance Rayleigh scattering (RRS) spectra of the ion- association complexes of [MoO(SCN)(5)](2-) were carried out with the b asic triphenylmethane dye such as crystal violet (CV), ethyl violet (E V), malachite green (MG), brilliant green (BG) and iodine green (IG). The spectral characteristics, the effect factors and the optimum react ion conditions have been investigated. The quantitative relationships of the intensities of RRS to the concentration of molybdenum were esta blished. The new and highly sensitive ways for the determination of mo lybdenum by RRS have been proposed. The methods can be applied to the determination of trace amounts of molybdenum in steel with satisfactor y results.