摘要
利用凝胶渗透色谱法测定了木质素分散剂的相对分子质量分布。结果表明 ,Reax- 85A相对分子质量分布为 50 0～ 350 0 0 ,M- 9为 10 0 0～ 50 0 0 0。Reax- 85和 M- 9各薄层分离组分的相对分子质量分布的测定结果说明 ,组分 Rf值越大 ,流出体积越大 ,相对分子质量越小。 Na OH溶液的浓度对洗脱图形有很大影响 ,当其浓度为 0 .
Gel chromatography was employed to measure relative molecular mass distribution of lignin dispersants. The results show that relative molecular mass distribution of Reax 85A(Ⅰ) and M 9(Ⅱ) are respectively to be from 500 to 35 000 and from 1 000 to 50 000. The fractions separated from (Ⅰ) and (Ⅱ) by thin layer chromatography were also investigated through gel chromatography to prove that these fractions were mainly separated depending on relative molecular mass.
出处
《色谱》
CAS
CSCD
北大核心
2000年第3期277-279,共3页
Chinese Journal of Chromatography
关键词
凝胶
色谱法
木质素
相对分子质量分布
染料分散
gel chromatography
lignin
dispersant
relative molecular mass distribution
