数据导入后,软件自动提取色谱峰,如下图,在对桂花负离子样本进行提取峰,共提取出630个色谱峰,并自动预测出分子式。 软件中Fragment and Neutral Loss Filter可对特征性中药成分进行数据提取:即使含量低的有效成分也可以被迅速找到。 比如上图,特征性的过滤葡萄糖在负离子模式下m/z 179.0561, 可以从复杂的原始谱图中,筛查出含有葡萄糖m/z...

The Agilent 6545 Q-TOF mass spectrometer, which is shown in the following picture, is a state-of-the-art quadrupole time-of-flight (Q-TOF) mass spectrometer that performs both high resolution mass spectrometry (HRMS) and high-resolution tandem mass spectrometry (HRMS/MS).

Quadrupole time-of-flight (QTOF) MS has revolutionized how we identify and quantify complex mixtures and unknown compounds, in fields ranging from biological and pharmaceutical research to clinical toxicology. Our ultra-high resolution QTOF and LC-QTOF instruments are at the leading-edge of this technology.

Without the application of local spatial averaging and compared to standard image analysis, DML image analysis reduced spatial variability in arterial velocity measures for qTOF (top row, left and middle panels) and provided flow velocity maps that mimicked the more “laminar” appearing flow profiles (i.e., faster flow velocities in vessel ...

IMAGES. Share. Facebook. Linkedin. X.com. Email. Q-TOF. Appears In. Analytical Chemistry Laboratory; Tandem quadrupole – time of flight (Q-TOF) mass spectrometry system interfaced to a gas chromatograph. Download full image. Image Type. Photo. HEADQUARTERS 100 Bureau Drive Gaithersburg, MD 20899

2025年1月1日 · OLE-LC–Qtof-MS is an alternative tool for spatial-resolved metabolomics. The ranking style of fragment ion intensity was used for isomeric identification. 46 and 41 ingredients were observed and identified from FV and JN petals. 87 compounds exhibited regio-specific occurrence and accumulation.

With all mass spectrometry imaging techniques, there is a drive for higher spatial resolution through smaller pixel sizes. We have demonstrated that the Xevo G3 QTof coupled to a DESI XS source is capable of acquiring images with pixels of as little as 5 µm.

Find Lc Ms Qtof stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Thousands of new, high-quality pictures added every day.

Find qtof stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Thousands of new, high-quality pictures added every day.

2024年12月4日 · SYNAPT G2-Si QTOF质谱仪连接到ACQUITY UPLC （Waters Corporation， MA）分析的非靶向代谢组学数据，是在MSE模式采集的，这个模式数据和一般的LC-MS/MS数据不一样，我用一般的方法看不到数据的二级质谱，想问问有没有人知道这个数据做非靶向代谢组学