氮吹仪采用惰性气体对加热样液进行吹扫，使待处理样品迅速浓缩，达到快速分离纯化的效果。该方法操作简便，尤其可以同时处理多个样品，大大缩短了检测时间。被广泛应用于农残检测，制药行业和通用研究中的样品批量处理。

Pressured gas blowing concentrators carry on inert gases blowing on the heating samples, concentrate the samples repidly, in order to achieve fast seperation efforts. Especially they can operate muti-samples simultaneously, shorten testing time. They are widely used in detect pesticide residues, pharmacy and muti-samples experiment in general areas.