A convenient method for the determination of moisture in aromatic plants

Química Nova

Morais, Augusto Ramalho de¹  Nelson, David Lee¹  Silva, Vanisse de F.¹  Universidade Federal de Minas Gerais¹  Salgado, Ana Paula S. P.¹  Pimentel, Flávio A.¹  Universidade Federal de Lavras, Lavras¹  Aguiar, Priscila M.¹  Cardoso, Maria das Graças¹ 

关键词: aromatic plant;    moisture content;    essential oil.;   

DOI  :  10.1590/S0100-40422006000200031

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

A method is proposed for the determination of the moisture content of aromatic plants. This method is based on the co-distillation of the starting material in a modified Clevenger apparatus with four organic solvents (toluene, cyclohexane, dichloromethane and carbon tetrachloride). The results were compared with those obtained by oven drying at 105 ºC and steam distillation of the essential oil. The efficiencies of the methods were shown to be equivalent. The solvent distillation method was more practical, especially with respect to operating time (2 h).

【 授权许可】

Unknown