煙草葉片中自由水含量測定方法比較分析

Comparison of Free Water Measurement Methods in Tobacco Leaves

摘要: 比較分析了煙草葉片中自由水含量測定的兩種方法—阿貝折射儀法和稱重法,。結(jié)果表明，兩種方法測定結(jié)果差異不顯著,。其中,，稱重法測定的變異幅度和相對變異程度較小,，其測定結(jié)果代表性更好,。確定了稱重法和阿貝折射儀法適宜的加糖液量和浸泡時間，兩種方法均以加入煙草葉片質(zhì)量6倍以上的蔗糖溶液并浸泡6 h以上處理比較理想,。

Abstract: Two methods including Abbe Refractometer method and weighing method for measuring free water in tobacco leaves were compared in this study.. The results showed that no significant difference between the two methods was observed, with less variation of percent free water and more representitive results in weighing method. In addition, the appropriate amount of sucrose solution and soaking time of the two methods were also determined, indicating that adding 6 times more sucrose solution than tobacco leaf weight and soaking over 6 hours were suitable for the measurement of free water in tobacco leaves.