This paper compares data of carotenoids content obtained from six different extraction solvent systems which have been reported according to the same extraction procedure.
本文对不同类型的材料，采用报道的六种不同的提取溶剂系统按相同的步骤进行提取，比较总类胡萝卜素的含量。
Determination of free water for compound fertilizers is usually applied Karl Fischer method or vacuum oven method, a different extraction solvent can selected as Karl Frscher method is applied.
复混肥料中游离水含量的测定方法通常采用卡尔·费休法或真空烘箱法，用卡尔·费休法测定时又可选用不同的萃取剂。
The orthogonal test was used to study the different factors that influence the solvent extraction of tobacco, and then the optimum testing conditions of extraction were determined.
对分子蒸馏分离烟草提取物的溶剂进行了研究。利用正交试验设计研究了影响溶剂萃取的各种因素，并确定了较合理的萃取条件。
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