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On-line sulphate monitoring by reversed flow injection analysis and alternating reagent injection

On-line Sulfatbestimmung durch umgekehrte Fließinjektionsanalyse und alternierende Reagensinjektion

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  • Environmental Substances
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Zusammenfassung

Es wird ein automatisiertes on-line System für die Sulfatbestimmung in Abwasserausflüssen beschrieben, das auf umgekehrter Fließinjektion beruht (turbidimetrische Bestimmung von Bariumsulfat). Je Stunde können 60 Analysen ausgeführt werden. Das Verfahren ist zur Überwachung vor Ort geeignet für einen Konzentrationsbereich bis zu 200 mg/l mit einem Variationskoeffizient besser als 2,0%.

Summary

An on-line automated system for the determination of sulphate in effluent water streams based on the concept of reversed flow injection analysis and alternating reagent injection is described (turbidimetric determination of barium sulphate). The rate of determination is 60 actual analyses/h. The method is suitable for the on-site monitoring of sulphate in the concentration range up to 200 mg/l with a coefficient of variation of better than 2.0%.

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Authors and Affiliations

  1. Department of Chemistry, University of Pretoria, 0002, Pretoria, South Africa

    Jacobus F. van Staden

Authors
  1. Jacobus F. van Staden
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van Staden, J.F. On-line sulphate monitoring by reversed flow injection analysis and alternating reagent injection. Z. Anal. Chem. 326, 754–756 (1987). https://doi.org/10.1007/BF00487370

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  • DOI: https://doi.org/10.1007/BF00487370

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