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超高效液相色谱——四极杆-静电场轨道阱高分辨质谱联用仪(Q Exactive)
文章来源:本站原创    发布时间:2020-09-16      【字号:

 

仪器名称 

超高效液相色谱——四极杆-静电场轨道阱高分辨质谱联用仪(Q Exactive 

生产厂家 

ThermoFisher Scientific 

启用时间 

2020 

主要技术指标 

质谱最高分辨率:140000 FWHMm/z ≤ 200);  

质谱扫描质量范围:50 – 6000 m/z 

正负极性离子同时扫描; 

质谱扫描模式: 

1. Full MS-SIM,全扫描和选择离子扫描; 

2. All Ion Fragmentation,全离子碎片扫描; 

3. Full MS/dd MS2,全扫/二级质谱扫描; 

4. Targeted SIM,目标离子选择性扫描; 

5. PRM, Parallel Reaction Monitor,平行反应监测; 

6. Targeted SIM/ dd MS2,目标离子扫描/二级质量扫描; 

7. Full MS/AIF/NL dd- MS2,仪器先做一次全扫描获得一级离子信息,再做AIF获得二级离子信息,然后比较一级与二级离子之间的差值,如果某组分丢失了设置质量数的中性碎片,会自动触发做二级质谱,此扫描方式可获取能产生特定中性丢失组分的二级质谱; 

8.DIA,数据非依赖分析。 

主要功能及应用 

目标化合物定性和定量分析; 

未知化合物筛选、定性和确证分析。 

仪器管理员 

黄国培 

联系电话 

15685168521 

邮箱 

huangguopei@mail.gyig.ac.cn 

安放地点 

环境地球化学国家重点实验室A2-103 

配套设施 

氮气发生器,Compound Discoverer 3.1化合物数据库搜索软件 

收费标准 

500/件或5000/天,具体收费标准以实际样品数量及样品具体情况确定 

相关参考文献 

1. YAN X-T, ZHANG Y, ZHOU Y, et al. Technical Overview of Orbitrap High Resolution Mass Spectrometry and Its Application to the Detection of Small Molecules in Food (Update Since 2012) [J]. Critical reviews in analytical chemistry, 2020, 1-34. 

2. SORIA N G C, BISSON M A, ATILLA-GOKCUMEN G E, et al. High-resolution mass spectrometry-based metabolomics reveal the disruption of jasmonic pathway in Arabidopsis thaliana upon copper oxide nanoparticle exposure [J]. Science of the Total Environment, 2019, 693133443. 

3. LEI S, SHI P, WU W,et al. Extensive screening of cyclopeptide toxins in mushrooms by ultra-high-performance liquid chromatography coupled with quadrupole-Orbitrap mass spectrometry [J]. Food Chemistry, 2020, 329 

4. WOJCIESZEK J, JIMENEZ-LAMANA J, BIERLA K, et al. Elucidation of the fate of zinc in model plants using single particle ICP-MS and ESI tandem MS [J]. Journal of Analytical Atomic Spectrometry, 2019, 34(4): 683-93. 

5. 胡巧茹,曹鹏,丛中笑等,超高效液相色谱-四极杆/静电场轨道阱高分辨质谱对粮谷产品中20种真菌毒素的快速筛查和确证 [J].色谱,2019,37(11),1241-1248.