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Determination of hydrophobic degree of paper packaging materials by a tracer-assisted headspace gas chromatography
Nordic Pulp & Paper Research Journal ( IF 1.2 ) Pub Date : 2020-09-25 , DOI: 10.1515/npprj-2020-0018
Yi Dai 1, 2 , Zhen-Hua Yu 3 , Hao Wang 3 , Jian-Bo Zhan 3 , Jiao Xie 3 , Bao-Shan Yue 3 , Wei-Qi Xie 2 , Xin-Sheng Chai 2, 4
Affiliation  

Abstract The present work reports on a method for the determination of hydrophobic degree of paper packaging material by tracer-assisted headspace gas chromatography. The method was based on adding 40 μL of methanol-water drop on the paper surface for 20 s. After removing the excess water by turning the sample vertically, the sample is placed in a vial and the amount of residual tracer attached on the material surface was accurately quantified by full evaporation headspace gas chromatography. The results show that the present method has a good precision (less than 4.1 %). The present method is simple and accurate and it can be an efficient tool for testing the hydrophobic degree of paper packaging material in batch.

中文翻译:

示踪辅助顶空气相色谱法测定纸包装材料的疏水度

摘要 本工作报告了一种示踪辅助顶空气相色谱法测定纸包装材料疏水度的方法。该方法基于在纸表面加入40 μL甲醇-水滴20 s。通过垂直转动样品去除多余的水后,将样品放入小瓶中,通过全蒸发顶空气相色谱法准确定量附着在材料表面的残留示踪剂的量。结果表明,本方法具有良好的精密度(小于4.1%)。本方法简便、准确,可作为批量检测纸包装材料疏水度的有效工具。
更新日期:2020-09-25
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