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HILIC chromatography column apparatus and SPE concentrator for sample preparation and pesticide analysis

机译:HILIC色谱柱设备和SPE浓缩器用于样品制备和农药分析

摘要

An arrangement for preparing samples and analyzing pesticides in samples contains an HILIC chromatography column with a first pump for a predominately low-water and/or non-polar solvent; and SPE enrichment arrangement; a second chromatography column with a second pump for a predominantly water-rich and/or polar solvent; a detector; and a valve arrangement for controlling the stream of sample and matrix, which valve arrangement is designed in such a way that the sample stream, in a first switching state of the valve arrangement, can be conducted from the HILIC chromatography column to the SPE enrichment arrangement and, in a second switching state, the sample enriched in the SPE enrichment arrangement can be conducted in the opposite direction from the SPE enrichment arrangement through the second chromatography column to the detector.
机译:一种用于制备样品和分析样品中农药的装置,包括一个HILIC色谱柱,该柱具有用于主要是低水和/或非极性溶剂的第一台泵;和SPE浓缩安排;第二色谱柱,带有第二泵,主要用于富水和/或极性溶剂;探测器以及用于控制样品和基质流的阀装置,该阀装置被设计成使得在阀装置的第一切换状态下,样品流可以从HILIC色谱柱被引导至SPE富集装置。并且,在第二切换状态下,可以以与从SPE富集装置相反的方向通过第二色谱柱到检测器的相反方向进行在SPE富集装置中富集的样品。

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