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Analysis of Red Phosphorus in Resins Using Pyrolysis-Gas Chromatography/Mass Spectrometry

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Abstract

Although red phosphorus is used as a flame retardant for polymer materials, no analysis methods for it in resins has been established. Analysis methods for red phosphorus in resins were investigated using pyrolysis-gas chromatograpy/mass spectrometry (Py-GC/MS) by paying attention to the fact that it has a sublimation property. We found that the mass spectrum of red phosphorus shows a series of ions at m/z = 62, 93 and 124, and a fragment pattern indicating that red phosphorus (P4 = 124, P = 31) was pyrolytically decomposed. The coefficient of the correlation between the content of red phosphorus in the resin and the peak intensity in Py-GC/MS was 0.9781. The relative standard deviations of this analysis method was 6.29% (n = 5). Py-GC/MS was applicable not only to qualitative analysis but also to the quantitative analysis of red phosphorus.

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Authors and Affiliations

  1. Analysis Technology Research Center, Sumitomo Electric Industries, Ltd., 1–1–3 Shimaya, Konohana, Osaka, 554-0024, Japan

    Masuo Iida, Kenichiro Miyatake & Atsushi Kimura

Authors
  1. Masuo Iida
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  2. Kenichiro Miyatake
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  3. Atsushi Kimura
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Correspondence to Masuo Iida.

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Iida, M., Miyatake, K. & Kimura, A. Analysis of Red Phosphorus in Resins Using Pyrolysis-Gas Chromatography/Mass Spectrometry. ANAL. SCI. 24, 539–542 (2008). https://doi.org/10.2116/analsci.24.539

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  • DOI: https://doi.org/10.2116/analsci.24.539

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