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FU Ranran, LIU Shuiqing, RONG Defu, KANG Jitao. Determination of Cadmium in Iron Ores by Atomic Fluorescence Spectrometry[J]. Rock and Mineral Analysis, 2009, 28(6): 595-597.
Citation: FU Ranran, LIU Shuiqing, RONG Defu, KANG Jitao. Determination of Cadmium in Iron Ores by Atomic Fluorescence Spectrometry[J]. Rock and Mineral Analysis, 2009, 28(6): 595-597.
shu

Determination of Cadmium in Iron Ores by Atomic Fluorescence Spectrometry

  • 1.

    Export and Import of Inspection and Quarantine Bureau of Beilun

  • 2.

    Ningbo Limited Corporation of China Certification & Inspection Group

  • 3.

    Export and Import of Inspection and Quarantine Bureau of Beilun

  • 4.

    Export and Import of Inspection and Quarantine Bureau of Beilun

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  • Received Date: February 27, 2009
  • Revised Date: June 06, 2009
    Abstract
  • Iron ore was dissolved with mixed acid of HClHNO3-HF-HClO4 and content of Cd in the sample solution was determined by atomic fluorescence spectrometry (AFS). The effects of some parameters such as solution acidity, dosage of Ni2+ (as a sensitizer), dosages of ascorbic acid and thiourea, working parameters of the AFS instrument on the determination were studied and optimized by experiments. The allowable quantities of the interference elements were also investigated. The results showed that the detection limit of the method for Cd was 0.20 g/L with dynamic linear range of 0～160 g/L. The recovery of the method for Cd was 95.9%～103.7% with precision of 4.5% RSD. The method has been applied to the rapid determination of Cd in iron ores.
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