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KMID : 0385520120250060402
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Analytical Science & Technology
2012 Volume.25 No. 6 p.402 ~ p.409
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Analytic study on arsenic content in plastic materials
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Lee Jae-In
Choi Zel-Ho
Chio Ki-In
Choi In-Suk
Ko Byung-Rae
Cho Hun-Sik
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Abstract
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Quantitative analytical condition for arsenic in plastic materials by the flow injection-hydride generation-inductively coupled plasma-atomic emission spectrometry was studied. The plastic samples were dissolved by wet-acid digestion method and microwave-acid digestion method. The reproducibility and accuracy in this method was verified using of certified reference materials(CRMs) CRM-EC680k and CRM-EC681k. The analyical results agrees with certified value within the range of uncertainty. The results of CRM-EC680k wer 4.1~4.3 mg/kg (certified value 4.1±0.5 mg/kg), and the results of CRM-EC681k were 28.9~30.6 mg/kg (certified value 29.1±1.8 mg/kg).
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KEYWORD
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arsenic, HG-ICP-AES, HG-AAS, wet-acid digestion method, microwave digestion method
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