顶空注射
顶空注射

使用PAL系统的顶空注射给实验室带来了许多强大的好处

最好的好处是独特的基于工具的解决方案。不需要额外的仪器,不需要覆盖额外的工作台,也不需要重新布置气路。对于静态和动态顶空分析,只需在PAL系统中插入一个专用工具,就可以立即使用。

顶空注射
  • 挥发性物质的分析方法是直接抽取样品顶空的等分试样(静态顶空分析),或者在测量前对分析物进行浓缩(动态顶空分析),如果化合物浓度低或挥发性较低(半挥发性有机碳,SVOC)。

  • 静态顶空分析是在样品/顶空达到平衡后抽取等量的气体,而动态方法则是在注入前尽可能多地收集感兴趣的分析物。这两种方法在过去都需要技术上不同的、复杂的、独立的仪器,以及耗费空间和成本的设备。这两种方法的共同点是采用GC或GC-MS的分析方式。通常,每个静态和动态顶空分析都需要一个专用的顶空或清洗和捕集装置。

敏感图示
  • 在PAL系统上,两种顶空分析模式为各种挥发性化合物提供了从样品到结果的最简单方法。不需要进行湿化学样品制备或提取或清理。样品的测试部分直接进入样品瓶,在PAL系统上自动分析大量的样品系列,具有无可比拟的样品容量。

  • 静态(HS-GC)和动态顶空分析(ITEX DHS-GC)的工作流程集成在GC和GC-MS色谱数据系统(CDS)中。PAL系统可以处理任何进样器的类型和尺寸,也可以在一台GC上处理多个进样器。对于不同极性的色谱柱的分析,可以使用一个GC的两个或更多的进样器。

  • 对于高通量的应用,一个较长的PAL系统可用于多个GC系统的进样器,节省了多个自动进样器的成本。

相关内容

Automated SPME: Extraction and Method Development Options with the PAL RTC and RSI
应用说明

Automated SPME: Extraction and Method Development Options with the PAL RTC and RSI

This application note highlights the versatility of the PAL System platform for performing different SPME experiments

阅读更多
Determination of contaminating fragrances in fish by PAL SPME Arrow and GC-MS/MS
应用说明

Determination of contaminating fragrances in fish by PAL SPME Arrow and GC-MS/MS

A method for the quantitative analysis of 9 polycyclic and nitro musk fragrances from fish samples by PAL SPME Arrow and GC-MS/MS has been developed.

阅读更多
PAL ITEX DHS
小册子

PAL ITEX DHS

用于气相色谱的强大的样品富集功能

阅读更多
PAL3 Accessories & Smart Consumables
小册子

PAL3 Accessories & Smart Consumables

Discover our Toolbox

阅读更多
Static and Dynamic Headspace Analysis
电子书

Static and Dynamic Headspace Analysis

The PAL Compendium

阅读更多
A Comparison of ITEX Dynamic Headspace–GC/MS to other Enrichment Techniques for Analysis of Flavoring Compounds
海报

A Comparison of ITEX Dynamic Headspace–GC/MS to other Enrichment Techniques for Analysis of Flavoring Compounds

The automated ITEX Dynamic Headspace unit demonstrated equivalent accuracy and precision when compared to purge and trap and overall was more sensitive than the other enrichment techniques. The ITEX unit allows for automated analysis and optimization of conditions which drastically reduces analyst’s time when compared to performing the experiments manually with the purge and trap without any reduction in sensitivity, accuracy and reproducibility.

阅读更多
Analysis of volatile compounds from honeys to differentiate plant and geographical origins
海报

Analysis of volatile compounds from honeys to differentiate plant and geographical origins

The analysis of volatile organic compounds (VOCs) is a faster approach to identify the honey’s origin than traditional methods, which is important for the quality control of honeys. In-tube extraction dynamic headspace (ITEX-DHS) is a fully automated microextraction technique, in which the enrichment of analytes takes place by repeated aspiring and dispensing of the sample headspace through a sorbent trap

阅读更多
联系我们 LinkedIn