• Title, Summary, Keyword: flame and flameless AAS

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Analysis of Cadmium in Urine using Flame and Flameless Atomic Absorption Spectrophotometry (불꽃 및 비불꽃원자흡수분광법을 이용한 뇨중 카드뮴 분석)

  • Ham, Yong-Gyu;Lee, Seok-Ki;Jeon, Jae-Hong;Joung, Chang-Ung;Son, Bu-Soon
    • Analytical Science and Technology
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    • v.12 no.5
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    • pp.355-359
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    • 1999
  • Trace cadmium was determined in urine by flame and nameless AAS. Inflame method, cadmium was extracted into MIBK from Cd-DDTC complex. In flameless method, samples were pretreated with 1%, Triton X-100. 1% $HNO_3$ and matrix modifier $Pd(NO_3)_2$. Analysis of cadmium was, performed at $450-750^{\circ}C$ ashing temperature by use of pyrocoated tubes. Results of analysis, flameless method superior in sample treatment and reproducibility to flame method and highest absorbance was obtained at $550^{\circ}C$ ashing temperature. 100 mg/L $Pd(NO_3)_2$ concentration. Proposed method were applied to the determination of cadmium in standard urine Lononorm-Metalle 3.

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