Methods The essential oil was extracted by steam distillation from sunning-fixed sample and sulfur-smoke-dried sample, and their components were analyzed by GC-MS.
方法采用水蒸气蒸馏法分别提取八角茴香杀青晒干品及其硫熏干燥品的挥发油，用GC鄄MS 法鉴定挥发油成分。
Ultrasonic extraction was used to extract the gypenosides from fresh leaves sample(F), fixed sample(X), baked sample(B), air-dried sample(A) and dry tea sample(D) of Gynostemma pentaphyllum.
用超声法提取绞股蓝鲜叶样、杀青样、烘干样、风干样以及绞股蓝袋泡茶干茶样的总皂甙， 并测定其含量。
The methanolic extract obtained from shellfish sample should be dried under nitrogen, keeping the concentration of methanol below 4%.
利用甲醇进行贝类样品的提取后需要进行氮气吹干，样品检测液中的甲醇浓度必须低于4%。
A sample of the blend is pre-dried and weighed. The sample is then digested in chemicals appropriate to the blend.
混合样品预先烘干并称重，溶解于自动控制剂量的化学药剂中。
A sample of the blend is pre-dried and weighed. The sample is then digested in chemicals appropriate to the blend.
混合样品预先烘干并称重，溶解于自动控制剂量的化学药剂中。
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