Skip to main content
Journal of Wood Science

Official Journal of the Japan Wood Research Society

Download PDF
  • Note
  • Published:

Spectrophotometric assay of a wood preservative, N,N-didecyl-N-methylpoly(oxyethyl) ammonium propionate (DMPAP), in aqueous solution

Journal of Wood Science volume 57, pages 166–169 (2011)Cite this article

Abstract

A spectrophotometric assay based on the color reaction between N,N-didecyl-N-methyl-poly(oxyethyl) ammonium propionate (DMPAP) and 4-[4-(dipropylamino) phenylazo]-benzenesulfonic acid (propyl orange) was used to determine DMPAP concentrations as a wood preservative. The assay was carried out using a propyl orange solution at pH 2.9. The visible absorption spectrum of propyl orange showed an absorption maximum at 510 nm, which decreased linearly with increasing DMPAP concentration from 0 to 10 ppm. To apply this assay method to determine DMPAP retention in treated wood, the influence of wood extractives on the assay was investigated. Extractives from Japanese cedar, hinoki cypress, and Japanese larch were found to increase apparent DMPAP concentration. However, it was also found that measuring visible absorption at 477 nm prevented overestimation and gave precise values. This assay can be a viable alternative to the current methods for the determination of DMPAP concentrations.

References

  1. Tonosaki M (2009) Harvested wood products accounting in the post Kyoto commitment period. J Wood Sci 55:390–394

    Article  CAS  Google Scholar 

  2. Tsunetsugu Y, Tonosaki M (2010) Quantitative estimation of carbon removal effects due to wood utilization up to 2050 in Japan: effects from carbon storage and substitution of fossil fuels by harvested wood products. J Wood Sci. doi: 10.1007/s10086-009-1107-4

  3. Deroubaix G (2008) Wood protection, a tool for climate change mitigation? Document no. 08-50257. International Research Group on Wood Protection, Stockholm

  4. Momohara I, Saito S, Ohmura W, Kiguchi M (2009) Effect of drying method as a pretreatment on CUAZ preservative impregnation in Japanese cedar logs. J Wood Sci 55:441–445

    Article  CAS  Google Scholar 

  5. Japan Wood Preservers Industry Association. Transition of amount of wood preservatives (in Japanese). http://www.jwpia.or.jp/shinchaku/index.html. Accessed July 15, 2010

  6. Japanese Agricultural Standard (2007) Japanese Agricultural Standard for Sawn Timber. Notification no. 1083 of the Ministry of Agriculture, Tokyo

  7. Japan Wood Preserving Association, Japanese Standards Association (2004) Wood preservatives. Japanese Industrial Standard K 1570

  8. Nagano Y (2001) Fungus cellar testing as an evaluation method for performance of treated timber in ground contact. Document no. 01-20227. International Research Group on Wood Protection, Stockholm

    Google Scholar 

  9. Sakai H (2009) Fungal resistance test for non-treated and treated wood in the field (in Japanese). J Soc Mater Sci Jpn 58:271–279

    Article  CAS  Google Scholar 

  10. American Wood Protection Association Standard (2008) Standard for HPLC method for didecyldimethyl ammonium chloride (DDAC) determination in treated wood, A16-08. American Wood Protection Association, Birmingham, AL

    Google Scholar 

  11. Snyder LR, Kirkland JJ, Glajch JL (1997) Ionic samples: reversedp-hase, ion-pair, and ion-exchange HPLC. In: Practical HPLC method development, 2nd edn. Wiley-Interscience, Hoboken, pp 292–349

    Google Scholar 

  12. Momohara I, Kato A, Nishimura T (2010) Spectrophotometric assay of a wood preservative, didecyldimethylammonium chloride (DDAC), in aqueous solution. J Wood Sci 56:314–318

    Article  CAS  Google Scholar 

  13. Motomizu S, Oshima M, Hosoi Y (1992) Spectrophotometric determination of cationic and anionic surfactants with anionic dyes in the presence of nonionic surfactants. Part I: A general aspect. Mikrochim Acta 106:57–66

    Article  CAS  Google Scholar 

  14. Motomizu S, Gao YH (1994) Solvatochromism based on the interaction between azo dyes and hydrophobic ions: application to the determination of surfactants by flow-injection spectrophotometry. Microchem J 49:326–339

    Article  CAS  Google Scholar 

  15. Motomizu S, Oshima M, Hosoi Y (1992) Spectrophotometric determination of cationic and anionic surfactants with anionic dyes in the presence of nonionic surfactants, part II: development of batch and flow injection methods. Mikrochim Acta 106:67–74

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, Ibaraki, 305-8687, Japan

    Ikuo Momohara & Wakako Ohmura

Authors
  1. Ikuo Momohara
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Wakako Ohmura
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Ikuo Momohara.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Momohara, I., Ohmura, W. Spectrophotometric assay of a wood preservative, N,N-didecyl-N-methylpoly(oxyethyl) ammonium propionate (DMPAP), in aqueous solution. J Wood Sci 57, 166–169 (2011). https://doi.org/10.1007/s10086-010-1155-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10086-010-1155-9

Key words