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Xue Xiuling, Li Mengdi. Rapid determination of sulfate in water by turbidimetry[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1359-1362.
Citation: Xue Xiuling, Li Mengdi. Rapid determination of sulfate in water by turbidimetry[J]. Chinese Journal of Environmental Engineering, 2013, 7(4): 1359-1362.
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Rapid determination of sulfate in water by turbidimetry

  • 1.

    College of Chemical Engineering, Huaqiao University, Xiamen 361021, China

  • Received Date: 04/07/2012
    Accepted Date: 23/02/2012
    Available Online: 09/04/2013
    Fund Project:
  • To achieve a rapid field determination, a new method for the determination of sulfate in water with nephelometer was developed basing on the turbidity of barium sulfate. Influencing factors such as background turbidity, addition amount of barium chloride, shaking time, and settle time, were investigated. Results revealed that 5~25 NTU of background turbidity had negligible effects on the determination. The optimal conditions were optimized to be barium chloride addition amount of 0.2 g, hand shake of 40 s, and settle time of 5 min. Under the optimal conditions, the linear range of the method was 5~90 mg/L with a correlation coefficient of 0.9998. The method detection limit was 0.25 mg/L. Recoveries of spiked samples were in the range of 94.00%~105.25% with an relative standard deviation (RSD) less than 1.75%(n=5). The established method is portable and simple, and has the potential application with the simultaneous determination of turbidity.
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Rapid determination of sulfate in water by turbidimetry

  • Received Date: 04/07/2012
  • Accepted Date: 23/02/2012
  • Available Online: 09/04/2013
Fund Project:

Abstract: To achieve a rapid field determination, a new method for the determination of sulfate in water with nephelometer was developed basing on the turbidity of barium sulfate. Influencing factors such as background turbidity, addition amount of barium chloride, shaking time, and settle time, were investigated. Results revealed that 5~25 NTU of background turbidity had negligible effects on the determination. The optimal conditions were optimized to be barium chloride addition amount of 0.2 g, hand shake of 40 s, and settle time of 5 min. Under the optimal conditions, the linear range of the method was 5~90 mg/L with a correlation coefficient of 0.9998. The method detection limit was 0.25 mg/L. Recoveries of spiked samples were in the range of 94.00%~105.25% with an relative standard deviation (RSD) less than 1.75%(n=5). The established method is portable and simple, and has the potential application with the simultaneous determination of turbidity.

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