Preconcentration of trace amounts of tungsten on Amberlite XAD-7 for its spectrophotometric determination in hot spring water
作者： M Soylak , L Elci , M Doğan
DOI: 10.1007/BF00321654
关键词:
摘要: A preconcentration procedure, using a short column loaded with Amberlite XAD-7, is proposed for the spectrophotometric determination of traces tungsten. The procedure based on retention tungsten resin after its reduction to W(V)-thiocyanate complex tin(II) chloride solution. Interference effects have been shown be neglible foreign ions including Ca2+, Mg2+, Na+, SO42−, F−, NO3−, Cu2+, Fe3+ and Mo6+. has applied hot spring water satisfactory results (Recovery > 95%; relative standard deviation < 5%; error 3%).
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