资讯

推荐 为解决传统gc - ms在复杂基质中难以有效分离异构体和微量成分的问题,研究人员以武夷岩茶(水仙)为对象,开展烘焙过程中挥发性成分动态变化研究。采用gc - ims和gc×gc - o - ms结合机器学习,鉴定出多种关键差异化合物,为茶叶加工和质量控制提供理论支持。
本研究针对东方甜瓜香气活性物质鉴定技术不足的问题,采用hs-spme结合gc?×?gc-o-tof-ms和gc-ms技术,结合aeda、香气重组与缺失实验,系统分析long4(果香型)和zhcg(青瓜香型)的挥发性成分差异。研究发现124种挥发性物质中32种具有香气活性,其中8种酯类物质主导long4的果香特征,7种醛醇类物质决定 ...
New GC/GC-MS instrument portfolio, including Thermo Scientific TRACE 1600 Series Gas Chromatograph, Thermo Scientific AI/AS 1610 Liquid Autosampler, Thermo Scientific ISQ 7610 Single Quadrupole GC ...
Analysts interested in quantifying volatile organic compounds or pesticides in liquid samples should consider using the gas chromatography - mass spectroscopy (GC-MS) system. The gas chromatography ...
The Agilent 7000E triple quadrupole GC/MS provides unequivocal intelligence and robustness to deliver the answers you seek. The routine workhorse for labs across a wide range of industry applications ...
GC/MS is commonly applied to volatile and semi-volatile compounds, said Terry Sheehan, Agilent’s director of marketing for GC/MS products. Use of tech Semi-volatiles include hundreds of pesticides and ...
If your lab includes Agilent 5975 or 5977 GC/MSD systems, you’ll be able to load your GC/MSD SIM and scan methods on the 7010B to balance your workload across all available instruments.
It also looks at how to choose the GC & GC-MS techniques for an application, set-up the instrument, ... You can attend the 5-day course all at once or, learn about the techniques in the first 3 days, ...
This live, instructor-led course provides the essential and practical theory about all available GC & GC-MS techniques, covering gases and plumbing, sampling techniques, how to choose the GC & GC-MS ...