[目的]探讨造纸法再造烟叶提取率的检测方法，以寻求适合实验室研究和生产线在线检测的操作方法。[方法]对比研究残渣称重法、极限提取法和提取液固含量计算法3种造纸法再造烟叶提取率的测定方法，在实验室条件下以及实际生产过程中的应用。[结果]提取液固含量计算法测定的提取率与残渣称重法和极限提取法测定的提取率之间差异不显著。残渣称重法不适用于生产线在线检测，极限提取法和提取液固含量计算法都适用于生产线在线检测，极限称重法检测过程较繁琐，提取液固含量计算法操作简单快捷。[结论]将提取液固含量计算法应用于造纸法再造烟叶实验室研究以及生产线在线检测中提取率的测定是可行的。%Objective]To discuss the determination methods for extraction rate in reconstituted tobacco made by papermaking process, and to find suitable determination methods for laboratory research and online inspection .[ Method] Three determination methods for extraction rate such as classic method of residue weighting , limit extraction method and algorithm for solid content of extracts were chosen , their application in labora-tory and productive process was studied contrastively.[Result] The difference among the results of the three methods was small.Classic method of residue weighting was not suitable to be applied in online inspection.The other two methods were applicable to be used in online inspection.How-ever, limit extraction method had accurate results but complicated inspection process , algorithm for solid content of extracts had less accurate re-sults compared to limit extraction method but simple and effective inspection process .[ Conclusion] It is practicable to apply algorithm for solid content of extracts in laboratory research and online inspection for extraction rate determination of reconstituted tobacco by papermaking process .
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