AIM: To apply the solid phase extraction (SPE) on salvianolic acids in Radix Salvia Miltiorrhizae by means of high performance liquid chromatography with mass spectroscopic detector (HPLC MSn).
目的：研究丹参药材中丹酚酸类成分的固相萃取预富集方法。
Fluidized bed drier enjoys advantages of even solid particle mixing and large heat and mass transfer area of gas and solid phase.
流化床操作具有固体颗粒混合好，气固两相传热传质表面积大等优点。
A new solid phase extraction-gas chromatography-mass spectrometry(SPE-GC/MS) method for simultaneous determination of ractopamine and clenbuterol in animal urine was reported.
建立了固相萃取-气相色谱-质谱法（SPE-GC/MS）同时测定动物尿样中的莱克多巴胺和克伦特罗的方法。
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