顶空进样器是气相色谱法中一种方便快捷的样品前处理方法,其原理是将待测样品置入一密闭的容器中,通过加热升温使挥发性组分从样品基体中挥发出来,在气液(或气固)两相中达到平衡,直接抽取顶部气体进行色谱分析,从而检验样品中挥发性组分的成分和含量。使用顶空进样技术可以免除冗长繁琐的样品前处理过程,避免有机溶剂对分析造成的干扰、减少对色谱柱及进样口的污染。该仪器可以和国内外各种型号的气相色谱仪相连接。
在样品前处理设备领域如自动顶空进样器,从设计研制到生产和技术服务取得了重大突破;
To sample-handling equipment, such as automatic headspace sampler, we achieved a major breakthrough from design and development to production and technical service ;
自动顶空进样器经国家鉴定,评审结果为:此产品达到国际先进水平,建议加大推广力度;
The result is that AutoHS automatic headspace sampler reached an advanced level in the world. And proposed that we should promote the sales of this product strongly.
方法用DM - 624毛细管气相色谱柱,顶空进样法,FID检测器,以甲醇为内标进行测定。
METHODS the samples were injected into DM-624 capillary column by headspace sampler and analysed with FID detector using methanol as the internal standard.
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