Sem X-Ray Microanalysis of Tracheid Cell Walls in Southern Yellow Pine Sapwood Treated with Water-Dispersible Pentachlorophenol
Keywords:Pentachlorophenol, preservatives, southern yellow pine, cell walls, scanning electron microscopy (SEM)
AbstractWater-based formulations of pentachlorophenol are an appealing alternative to oil-borne formulations. Their effectiveness is still being evaluated. This study was conducted to determine whether levels of water-dispersible pentachlorophenol in tracheid cell walls increase in proportion to increases in gross retention. Proportionate increases occurred in the S3 layer between gross retentions of 0.18 and 0.84 pcf (2.9 and 13.4 kg/m3). Increases of pentachlorophenol in the compound middle lamella at cell corners or in the S2 were not proportional to increases in gross retention above 0.43 pcf (6.9 kg/m3). More pentachlorophenol was detected in the earlywood than in the latewood at all retentions. The P/B ratios for pentachlorophenol in earlywood, but not in latewood, are proportional to gross retention.
American Society for Testing and Materials. 1980. ASTM D 1758-74. Standard method of evaluating wood preservatives by field tests with stakes. Pages 523-532 in Annual book of ASTM standards, part 22. Philadelphia, PA.nAmerican Wood-Preservers' Association. 1982. Book of standards. Bethesda, MD.nArganbright, D. G. 1973. Interactions between pentachlorophenol solutions and wood. I. Effects of time and temperature on deposition within cell walls. Wood Fiber 4(4):252-258.nBravery, A., N. Parameswaran, and W. Liese. 1975. Electron microscopic investigations on the effect of tri-n-butyl tin oxide on the decay of beechwood by Polystictus versicolor. Material und Organismen 10:31-41.nDeGroot, R. C. 1984. Water-dispersible pentachlorophenol: A preliminary report on field tests with southern pine stakes. AWPA Proceedings 1-14.nDeGroot, R. C., and T. A. Kuster. 1985. SEM X-ray microanalysis of pentachlorophenol in tracheid cell walls of pressure treated southern yellow pine sapwood. (In press.)nDrysdale, J. A., D. J. Dickinson, and J. F. Levy. 1980. Microdistribution of a CCA preservative in five timbers of varying susceptibility to soft rot. Material und Organismen 15(4):287-303.nGreaves, H. 1974. Electron probe X-ray analysis of selected anatomical structures in copper-chrome-arsenic-treated wood. Wood Sci. 7:164-168.nHatcher, D. B. 1980. Dura-Treet II. A water dispersible pentachlorophenol. Amer. Wood-Preservers' Assoc. Proc. 76:308-320.nHatcher, D. B. 1981. Dura-Treet I. A new completely water-borne pentachlorophenol process. Amer. Wood-Preservers' Assoc. Proc. 77:89-96.nResch, H., and D. G. Arganbright. 1971. Location of pentachlorophenol by electron microprobe and other techniques in Cellon treated Douglas-fir. For. Prod. J. 21(1):38-43.nRuss, J. C. 1974. X-ray microanalysis in the biological sciences. J. Submicr. Cytol. 6:55-79.nSmall, J. A., K. F. Heinrich, C. E. Fiori, R. L. Myklebust, D. E. Newbury, and M. F. Dilmore. 1978. The production and characterization of glass fibers and spheres for microanalysis. Pages 445-454 in Scanning electron microscopy I. 1978. SEM Inc., AMF O'Hare, [Chicago], IL.nStatham, P. J., and J. B. Pawley. 1978. A new method for particle X-ray micro-analysis based on peak to background measurements. Pages 469-478 in Scanning electron microscopy I. 1978. SEM Inc., AMF O'Hare, [Chicago], IL.nWallace, E. M. 1964. Factors affecting the permanence of wood preservatives and some of the problems arising therefrom. Pages 131-149 in Record of the Fourteenth Annual Convention British Wood Preserving Association.nWilcox, W. W., and N. Parameswaran. 1974. A method for electron microscopical demonstration of pentachlorophenol within treated wood. Holzforschung 4:153-155.nYata, S., J. Mukudai, and H. Kajita. 1979. Morphological studies on the movement of substances into the cell wall of wood II. Diffusion of copper compounds into the cell wall. Mokuzai Gakkaishi 25(3):171-176.nYata, S., J. Mukudai, and H. Kajita. 1981a. Morphological studies on the movement of substances into the cell wall of wood III. Diffusion of zinc compounds into the cell wall. Mokuzai Gakkaishi 27(11):761-766.nYata, S., J. Mukudai, and H. Kajita. 1981b. Morphological studies on the movement of substances into the cell wall of wood IV. Diffusion of hexavalent chromium into the cell wall. Mokuzai Gakkaishi 27(12):821-827.nYata, S., J. Mukudai, and H. Kajita. 1982. Morphological studies on the movement of substances into the cell wall of wood V. Distribution of chromium in the cell wall. Mokuzai Gakkaishi 28(1):10-16.nZicherman, J. B. 1975. SEM X-ray analysis of pentachlorophenol in treated wood. Wood Fiber 7(2):110-118.n
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