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用SEM-EDXA技术测定麦草纤维细胞木素分布(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1988年03期
Page:
45-51
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
LIGNIN DISTRIBUTION IN WHEAT STRAW FIBER AS DETERMINED BY SEM-EDXA TECHNIQUE
Article ID:
1000-2006(1988)03-0045-07
Author(s):
Zhai Haumin Lee Zhbngzhang Chen MinzhbngLi Yongjin Huang Jinsheng
Department of Forest Products Chemistry and Engineering
Keywords:
Wheat straw Lignin distribution Bromination X-rays SEM-EDXA
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1988.03.006
Document Code:
A
Abstract:
A method has been developed for the determination of lignin distribution in wheat straw cell walls by scanning electron microscopy coupled with energy dispersive X-ray analysis (SEM-EDXA) technique. This paper deals with the effects of bromination, section thickness and specimen grid holder on quantitative assay of lignin distribution. Results indicate that the combination of bromine for lignin is not only specific but stable, and the effects of backscattering. absorption and fluoresence on the quantitative analysis may all be ignored and the spatial resolution can be remedied by using thin speeimens. Therefore, the SEM-EDXA technique provides quantitative information of lignin distribution with relatively high accuracy.

References

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Last Update: 1900-01-01