A spectrophotometric flow injection procedure for the determination of sulphide is described. The reaction is based on the reduction of Fe(III) to Fe(II) by sulphide in acidic medium in the presence of 1,10 phenanthroline forming the orange-red complex [(C12H8N2)(3) Fe](2+) measured at 510 nm. The detection limit was lower than 1x10(-6) M with sampling rate of 50 h(-1) having a relative standard deviation of 0.96% (n=10).
S H SHAH ,AMNA BANO ,A WAHAB ,A NABI ,M YAQOOB ,A K K ACHAKZAI ,
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