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CHENG Si-hai, CHEN Dao-hua, LEI Zhi-sheng. Determination of Sulfide in Marine Sediments by Elemental Analyzer[J]. Rock and Mineral Analysis, 2011, 30(1): 63-66.
Citation: CHENG Si-hai, CHEN Dao-hua, LEI Zhi-sheng. Determination of Sulfide in Marine Sediments by Elemental Analyzer[J]. Rock and Mineral Analysis, 2011, 30(1): 63-66.
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Determination of Sulfide in Marine Sediments by Elemental Analyzer

  • 1.

    Guangzhou Marine Geological Survey, Guangzhou 510760, China

  • 2.

    Guangzhou Marine Geological Survey, Guangzhou 510760, China

  • 3.

    Guangzhou Marine Geological Survey, Guangzhou 510760, China

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  • Received Date: March 07, 2010
  • Revised Date: July 08, 2010
    Abstract
  • A method (called subtraction method) for the determination of sulfide content in marine sediments using elemental analyzer with direct solid sampling has been developed. Two samples were parallelly weighed, one was used for the determination of total sulfur, the other was burned at 500℃ for 3 h and then used for the determination of the remaining sulfur. The difference values of analytical results of sulfur in two samples is the content of sulfur in sulfides. The detection limit of the method was 0.018%, the recoveries were 97.7%~99.3% with the precision of 2.50%~5.48%RSD(n=12). Compared with the conventional measurement method, the method provided the advantages of lower sample weighing, simple operation, high accuracy and reliability.
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