Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Analytical study on nickel content in ceramic, metal and plastic materials

세라믹, 금속 및 플라스틱 소재의 니켈 함유량 분석에 관한 연구

  • Choi, Zel-Ho (Test & Standardization Center, Korea Institute of Ceramic Eng. & Tech.)
  • 최철호 (한국세라믹기술원 시험표준센터)
  • Received : 2011.11.10
  • Accepted : 2011.11.23
  • Published : 2011.12.25
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Abstract

Quantitative analytical condition for nickel in ceramic, metal and plastic materials using complexation and solvent extraction followed by inductively coupled plasma-atomic emission spectrometry (ICP-AES) and atomic absorption spectrophotometry (AAS) was studied. Ceramic, metal and plastic samples were dissolved by acid digestion. Nickel was determined by ICP-AES and AAS after extraction of Ni $(DMG)_2$ in $CHCl_3$. Recovery efficiency of nickel was satisfactory, and most of matrix elements causing interference could be effectively eliminated by the separation. Nickel in the certified reference materials (BAM-376 and PACS-2) were quantitatively determined without influence of sample matrix.

ICP-AES와 AAS를 이용하여 세라믹, 금속 및 플라스틱 소재에 함유된 니켈을 정량하기 위한 조건을 연구하였다. 니켈 정량을 위해 산분해하여 조제된 시험 용액을 직접 ICP-AES 또는 AAS로 분석할 때 철이나 크로뮴 등의 원소가 방해하므로, 니켈을 dimethylglyoxime으로 착화시키고 $CHCl_3$로 추출하여 방해원소로부터 분리한 후 $CHCl_3$을 제거하고 염산으로 용해하여 측정하였다. 니켈에 대한 측정 회수율이 우수하였고, 방해를 일으키는 매질원소를 효율적으로 제거할 수 있어 본 방법은 인증표준물질(BAM-376 및 PACS-2)에 대한 용매추출시험에서 matrix의 영향을 받지 않고 니겔을 정량할 수 있었다.

Keywords

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