TOFMS系统主要特点 飞行时间质谱(TOFMS)具有很高的采集频率,极大地增强了 GC×GC的定性能力。为复杂样品分离分析提供更有效的解决方案。TOFMS理论上对测定对象没有质量范围的限制,具有极快的响应速度及较高的灵敏度。TOFMS高样品通量,稳定性好。TOFMS的高速全部采集(500张全谱图/秒)可以快速完整定义很窄的峰并且...
Different metabolite phenotypes in three types of daqu were mainly caused by 21 metabolic pathways.Yang, LiangFan, WenlaiXu, YanJiangnan Univ Sch Biotechnol Key Lab Ind Biotechnol Lab Brewing Microbiol &LWT-Food Science & Technology
GC-TOF/MS analysis An aliquot of 1 μL of each derivatized sample was injected in a splitless mode by autosampler Combi-PAL Agilent (Waldbronn, Germany) into an Agilent 7890 gas chromatograph coupled to a Pegasus II time-of-flight (TOF) mass spectrometer (Leco Corp., St. Joseph, MI, US...
www.nature.com/scientificreports OPEN GC‑TOF/MS‑based metabolomics analysis to investigate the changes driven by N‑Acetylcysteine in the plant‑pathogen Xanthomonas citri subsp. citri Simone Cristina Picchi1, Mariana de Souza e Silva1, Luiz Leonardo Saldanha2, ...
In this work, the gaseous and particulate SVOCs emitted from a commercial light-duty diesel engine were identified and quantified by using two-dimensional Gas-Chromatography Time-of-Flight Mass-Spectrometry (GC × GC-ToFMS) coupled to a thermal desorption technique. Due to adopting two orthogonal...
GC × GC-TOFMS two-dimensional gas chromatography time-of-flight mass spectrometry HCA hierarchical cluster analysis HS-SPME headspace solid-phase microextraction HS-SPME-GC–MS headspace solid-phase microextraction-gas chromatography–mass spectrometry MSEA metabolite set enrichment analysis OPLS-DA orthogon...
GC-MS446 物质基础研究[D]. 北京: 北京中医药大学, 2021. [35] 胡静. 基于 UPLC-Q-TOF-MS 结合诊断离子与分子网 络策略解析当归补血汤的化学成分[D]. 太原: 山西大 学, 2021. [36] 赵艳敏, 刘素香, 张晨曦, 刘岱琳, 张铁军. 基于 HPLCQ-TOF-MS 技术的甘草化学成分分析 [J]. 中草药 , 2016, ...
The MS must remain upright at all times; this requires special caution when moving. The MS should not be left vented to atmosphere for long periods. For more information, see "To Move or Store the MS" in the Agilent 7200 Q-TOF GC/MS Troubleshooting and Maintenance Manual. 7200 Accurate-...
GC-MS I.1Gas Chromatography Mass Spectrometry J.Kopka1 1Introduction GC-MS technology has been used for decades in studies which aim at the exact quantification of metabolite pool size and metaboliteflux.Exact quan-tification has traditionally been focused on a single or small set of pre...
However, the application of GC × GC-TOFMS for the characterization of VSCs in Baijiu has not been reported till date. As opposed to the production of other aroma types of baijiu, the production of SSAB involves nine fermentation steps, and the whole process takes almost a year. In this ...