sample extraction造句

The pretreatment of food samples for determination of organochlorine pesticides residues were described in this article , including several new technology which development during recent years , for example : supercritical fluid extraction , accelerated solvent extraction and solid - phase microextraction , these methods have reduced the time and solvent needed for sample extraction
摘要综述了近十年来国内外对于食品中有机氯类农药分析的前处理技术，其中包括了近几年出现的一些新技术，如：超临界流体萃取、加速溶剂萃取和固相微萃取等，这些新技术不但缩短了样品的前处理时间并且减少了有机溶剂的用量。
It's difficult to find sample extraction in a sentence. 用sample extraction造句挺难的