X-ray spectrochemical analysis of organic solvent type preservatives in wood

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Other Title
  • けい光X線による木材中の油溶性防腐剤の分析
  • ケイコウ Xセン ニ ヨル モクザイ チュウ ノ ユヨウセイ ボウフザイ ノ ブンセキ
  • 木材防腐剤の定着に関する分析化学的研究 (第4報)

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Abstract

An X-ray spectrochemical method was employed in the determination of organic solvent type preservatives, such as tributyl tin terephthalate (TBT-Te), copper naphthenate, and pentachlorophenol (PCP), impregnating timbers. The measurements were done on the specimens prepared into briquettes by pressing powdered samples. The relation between grain size distribution and wood species, and their effect on the reproducibility of spectral intensities were investigated. The precision depended on uniformity of samples rather than their grain size. Errors coming from the preparation of briquettes were, in the case of TBT-Te treated samples, 13% in beech and 23% in cedar.<BR>Intensities of SnLα1, CuKα and ClKα changed linearly with the contents of TBT-Te, copper naphthenate and PCP in wood, up to 1.5%, 6% and 2%, respectively. The proposed method was applied to the estimation of retention rate of the preservative solution in bamboo by the determination of TBT-Te contained. The error due to the difference in wood tissue was much reduced by briquetting, compaired with that in the non-destructive analysis.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 17 (1), 3-7, 1968

    The Japan Society for Analytical Chemistry

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