分析古典技术精确度测量纤维素水分的增加/损失
Stefan Cichosz1, Anna Masek1, Katarzyna Dems-Rudnicka2
1Faculty of Chemistry, Institute of Polymer and Dye Technology, Lodz University of Technology, Lodz, Poland.
Frontiers in chemistry
|September 25, 2023
概括
重力测量方法精确地跟踪纤维素水分的变化. 卡尔-菲舍尔定位,FT-IR和NIR光谱仪提供了线性模型来进行水分吸收/溶解分析.
科学领域:
- 材料科学 材料科学 材料科学
- 分析化学 分析化学
背景情况:
- 纤维素的水分含量在各种应用中至关重要.
- 精确测量水分吸收/脱吸是必不可少的.
- 经典分析技术通常用于此分析.
研究的目的:
- 研究四种常见的纤维素湿度分析技术的精度和可重复性.
- 为了系统地比较重力测量方法,卡尔-菲舍尔定位,FT-IR和NIR光谱.
- 评估这些方法对于描述水分吸收/脱吸动态的适用性.
主要方法:
- 卡尔-菲舍尔定位法 卡尔-菲舍尔定位法
- (热) 重力测量分析的方法
- 里埃变换红外 (FT-IR) 光谱学
- 近红外 (NIR) 光谱学近红外 (NIR) 光谱学
- 对实验数据进行盒图分析.
主要成果:
- 重力测量方法提供精确的水分吸收/溶解曲线.
- 卡尔-菲舍尔定位,FT-IR和NIR光谱学成功地使用线性模型 (R2>90%) 描述了过程.
- 盒子图显示了每个技术的实验数据的分布和可重复性.
结论:
- 重力测量方法为水分吸附曲线提供了高精度.
- 光谱技术 (FT-IR,NIR) 和卡尔-菲舍尔定位适用于模拟水分动态.
- 本研究提供了对纤维素湿度测定关键方法的比较分析.
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