Enhanced Charge-Sensitive Amplifier Performance Leads to Substantially Reduced CD-MS Measurement Times for Charge State Resolution [0.03%]
增强的电荷灵敏放大器性能大大缩短了用于电荷态分辨的CD-MS测量时间
Raj A Parikh,Andrew W Alexander,Martin F Jarrold
Raj A Parikh
In charge detection mass spectrometry (CD-MS) ions are trapped in an electrostatic linear ion trap (ELIT) where they oscillate back and forth through a conducting cylinder. The oscillating ions induce a periodic charge separation that is de...
Nontargeted Screening of Fingermark Residue Using Comprehensive Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry for Future Use in Forensic Applications [0.03%]
基于气质联用技术的指印残留物非靶向筛查及其在法医学中的应用前景研究
Emma L Macturk,Katelynn A Perrault Uptmor
Emma L Macturk
Fingerprints are routinely used as evidence in forensic investigations. Fingermarks, any mark left by a donor whether a complete print or not, include sweat and oil excreted by the donor. The chemical components of fingermarks are typically...
Note: An Integrated Miniature Time-of-Flight Mass Spectrometer System with 3D Printing Assisted Design of Versatile Pocket-Size Laser-Induced Acoustic Desorption Source [0.03%]
笔记：一种集成化的微型飞行时间质谱仪系统及其与三维打印多功能口袋尺体积激光诱导声波解吸源的设计
Qiaolin Wang,Yulong Shi,Xiaojian Li et al.
Qiaolin Wang et al.
An integrated miniature time-of-flight mass spectrometer (TOF-MS) system coupled with a pocket-size 3D-printed laser-induced acoustic desorption (LIAD) source is described. This 3D-printed LIAD source utilizes only a miniature deceleration ...
Algorithm-Driven Chromatographic Method for Prostaglandin Isomer Identification via Tandem Mass Spectrometry [0.03%]
基于串联质谱的前列腺素异构体识别的算法驱动色谱法
Toshinobu Hondo,Yumi Miyake,Michisato Toyoda
Toshinobu Hondo
This study explores the computational isolation of prostaglandin (PG) isomers, specifically PG E2 (PGE2) and D2 (PGD2), to enhance method development efficiency and provide insights into their retention behavior during supercritical fluid e...
Evaluation of Protein Ion Relative Ratio Quantification in Top-down Electrospray Ionization-Mass Spectrometry Using Site-Specific Acetylated Recombinant Histone H3 Proteoforms [0.03%]
采用位点特异性乙酰化组蛋白H3蛋白异构体评估顶空电喷雾离子化-质谱中的蛋白质离子相对比率量化效果
Kin-Wing Lui,Sai-Ming Ngai,Ting-Fung Chan
Kin-Wing Lui
Electrospray ionization (ESI)-mass spectrometry (MS) is a key platform for analyzing post-translationally modified proteins. With continuous advances in MS instruments and data analysis methods, top-down analysis of intact proteoforms has b...
Javier E Flores,David J Degnan,Yuri E Corilo et al.
Javier E Flores et al.
Quantifying the similarity between two mass spectra─a known reference mass spectrum and an unidentified sample mass spectrum─is at the heart of compound identification workflows in gas chromatography-mass spectrometry (GC-MS). The referen...
Germ-Specific Triacylglycerols as Potential Biomarkers for Authenticating Zhongzi Purple Rice, a Cultivar Recognized for Its Nutritional Value [0.03%]
具有营养价值的中紫稻品种鉴定的潜在生物标志物——宿主特异性三酰基甘油
Zhenchao Shao,Shuangshuang Di,Jie Lian et al.
Zhenchao Shao et al.
Zhongzi purple rice is recognized as a nutritionally superior whole-grain variety, containing higher levels of protein, iron, dietary fiber, and vitamin B6 compared to conventional rice. While the nutritional profile of Zhongzi purple rice ...
Experiment and Simulation Study of Automatic Temperature Control FAIMS Chip [0.03%]
实验与仿真结合的FAIMS芯片自动温度控制系统研究
Xiaoxia Du,Haonan Liang,Yao Li et al.
Xiaoxia Du et al.
The temperature of the carrier gas will affect the performance of high-field asymmetric ion waveform mobility spectrometry (FAIMS), changing the height and position of the peaks of the FAIMS spectrum. In this study, we explored the influenc...
High-Specificity and Sensitivity Imaging of Neutral Lipids Using Salt-Enhanced MALDI TIMS [0.03%]
利用盐增强基质辅助激光解吸/电离-漂移管质量滤过器联用技术进行中性脂高灵敏度和高特异性成像研究
Kameron R Molloy,Martin Dufresne,Madeline E Colley et al.
Kameron R Molloy et al.
Neutral lipids are vital to various cellular processes and disease pathologies. However, their characterization by matrix-assisted laser desorption/ionization imaging mass spectrometry (MALDI IMS) remains challenging due to poor ionization ...
Evaluation of the QCxMS2 Method for the Calculation of Collision-Induced Dissociation Spectra via Automated Reaction Network Exploration [0.03%]
评价通过自动化反应网络探索计算碰撞诱导解离光谱的QCxMS2方法
Johannes Gorges,Marianne Engeser,Stefan Grimme
Johannes Gorges
Collision-induced dissociation mass spectrometry (CID-MS) is an important tool in analytical chemistry for the structural elucidation of unknown compounds. The theoretical prediction of the CID spectra plays a critical role in supporting an...