Comparison of two thermochemolytic methods for the analysis of lignin in decomposing gymnosperm wood: The CuO oxidation method and the method of thermochemolysis with tetramethylammonium hydroxide (TMAH)

被引：185

作者：

Hatcher, PG

Nanny, MA

Minard, RD

Dible, SD

Carson, DM

机构：

[1] PENN STATE UNIV,DEPT GEOSCI,UNIVERSITY PK,PA 16802

[2] PENN STATE UNIV,DEPT CHEM,UNIVERSITY PK,PA 16802

来源：

ORGANIC GEOCHEMISTRY | 1995年 / 23卷 / 10期

基金：

美国国家科学基金会;

关键词：

TMAH thermochemolysis; lignin; gymnosperm wood; CuO oxidation;

D O I：

10.1016/0146-6380(95)00087-9

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Comparison of the new TMAH thermochemolysis procedure with the traditional CuO oxidation procedure for lignin characterization in gymnosperm wood and soil formed from degraded gymnosperm wood indicates that an excellent agreement exists between the two methods, especially with regard to the yield of lignin monomers. Moreover, the TMAH procedure appears to be more sensitive for calculation of benzenecarboxylic acid/benzaldehyde (Ad/Al) ratios, displaying a larger dynamic range than that observed by CuO oxidation. If one considers the simplicity with which the TMAH procedure is carried out, this technique is much more suited to routine analyses of large numbers of samples.

引用

页码：881 / 888

页数：8

共 18 条

[1]

BLANCHETTE RA, 1990, ADV CHEM SER, V225, P141

[2] A NEW RAPID TECHNIQUE FOR THE CHARACTERIZATION OF LIGNIN IN VASCULAR PLANTS - THERMOCHEMOLYSIS WITH TETRAMETHYLAMMONIUM HYDROXIDE (TMAH) [J].