1.高分辨率:ESI Orbitrap质谱仪具有非常高的分辨率,能够同时分辨出多个离子的质荷比。这使得分析结果更加精确和可靠。 2.高灵敏度:ESI Orbitrap质谱仪能够检测到非常微量的分子。这使得它在生物医学研究中的应用非常广泛,如药物代谢研究、蛋白质组学和代谢组学分析等。 3.宽质量范围:ESI Orbitrap质谱仪对分析物的质...
ESI-LTQ-Orbitrap in analysis of old tempera paintings: Application to 19th century Ortodox iconsProteomic approach in combination with mass spectrometry demonstrated a great potential for identification of proteinaceous materials in works of art. In this study we used the Linear Trap Quadropole - ...
因此,本研究基于血清代谢组学,首次对人参固本口服液对食蟹猴颈椎术后疗效进行研究,并对代谢组学的研究结果进行验证。本研究利用UHPLC-ESI-QE-Orbitrap-MS技术研究了人参固本口服液干预食蟹猴人工颈椎间盘置换术后血液代谢组学,以探讨...
目的:利用相对和绝对同位素标记(iTRAQ)和纳升级两维高效液相色谱-电喷雾-OrbiTrap质谱(2D nanoHPLC-ESI-OrbiTrap MS/MS)蛋白组学方法探寻卵巢癌血清标记物,以提高早期卵巢癌诊断率.方法:收集卵巢癌患者血清20例(卵巢癌组),CA125异常的卵巢良性囊肿16例(良性囊肿组),健康者20例(正常对照组),每组取10例组内等量混合...
for ESI-Orbitrap mass spectrometer–based isotope ratio measurements. Peer review Peer review information Nature Protocols thanks Amy Hofmann, Yongbo Peng, Matthias Pilecky and the other, anonymous, reviewer(s) for their contribution to the peer review of this work. Additional information Publisher’s...
Samples, consisting of either groundwater DCM extracts without SGC or untreated crude oil, were diffused directly into the LTQ Orbitrap XL with an electrospray ion source (ESI) at 5 μL per minute. The mass spectrometer was tuned to m/z 400, the center of the mass distribution of the ...
UHPLC-ESI-Orbitrap MS was the valid solu- tion for the chemical analysis of secondary metabolites in Maca, which could provide accurate full MS and MS/ MS fragments measurements of the target compounds with high sensitivity and precision. For quantitative anal- ysis, UHPLC-ESI-QqQ MS could ...
Validation and application of sub-2 μm core-shell UHPLC-UV-ESI-Orbitrap MS for identification and quantification of β-carotene and selected cleavage products with preceding solid-phase extraction. Anal Bioanal Chem 2014;406:2909-2924.G., MartanoE., BojaxhiI. C., ForstenlehnerC. G., ...
求助，实验室新购置的orbitrap Exploris 240，目前拆掉离子源就亮黄灯报错，扫描不了了。。有什么办法能...
基于UPLC-ESI-LTQ-Orbitrap-MS技术的瓜蒌薤白半夏汤物质基础研究.pdf,目录 基于UPLC-ESI-LTQ-Orbitrap-MS技术的瓜蒌薤白半夏汤物质基础研究I 摘要I ABSTRACTII 常用缩写词中英文对照表III 引言1 第一部分 基于UPLC-LTQ-Orbitrap 高分辨质谱的中药瓜蒌化学成分分析3 1材料与