The solid- phase extraction technique, including its principles, methodology , and the separation - modes for extracting drugs of abuse, is reviewed in this paper.

文章评述了固相萃取技术的原理、方法、特点以及从生物样品中提取滥用药物时常用的分离模式、吸附荆和洗脱剂。

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The phase separation extracting (floatation) technique is a new enrichment and separation method developed in recent years.

析相萃取（ 浮选）技术是近年来出现的一种新的分离富集方法。

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