Determination of trace concentrations of antimony by the introduction of stibine into an inductively-coupled plasma for atomic emission spectrometry

摘要: Abstract A simple, rapid and sensitive method is described for the determination of trace concentrations antimony by inductively-coupled plasma atomic emission spectrometry with hydride generation. Hydrochloric acid (1 M) best medium stibine generation, but antimony(III) also effectively reduced to in 1 M malic or 0.5 tartaric acid, whereas antimony(V) gives no significant signal either these acids. This permits differential Sb(III) Sb(V). Most inter-element interference effects can be minimized thiourea, bur standard additions are recommended accurate determinations. Thiourea effective prereducing Sb(V) Sb(III). The detection limit 0.19 ng Sb ml−1 calibration graph linear up 100 μg ml−1. r.s.d, at 3.8 2.1%, respectively. applied copper metal speciation waste water.