Imaging Lipidomics and Metallomics of Brown Rice Cultivars Used for Sake Production [0.03%]
用于酿酒的糙米品种的脂质组学和金属组学影像分析
Eliza Farestiani,Yoshihiro Tamada,Koji Okuda et al.
Eliza Farestiani et al.
Many previous studies have reported various phospholipids and elements that affect sake production; however, it seems to be challenging to investigate individual types in each rice variety due to their high diversity, not to mention their d...
A Study of the Deisotope Method for Mass Spectra of Complex Synthetic Polymer Mixtures Consisting of Multiple Repeating Units [0.03%]
复杂重复单元多重共聚物混合物离子质谱碎裂行为研究——代碎裂法及其定量分析
Toshiji Kudo,Shiori Yuge
Toshiji Kudo
In the interpretation step of mass spectra obtained from synthetic polymers, isotope peaks are typically intense and cannot be ignored, especially in the higher mass range. To reduce the complexity of the spectra, deisotope processing is us...
Direct Additive Detection in Polymer Films via Platinum-Assisted SALDI Mass Spectrometry Imaging [0.03%]
基于Pt辅助SALDI的聚合物薄膜直接加性检测及成像质谱分析
Hideya Kawasaki,Issey Osaka,Ryuichi Arakawa
Hideya Kawasaki
In this study, we employed platinum-assisted surface-assisted laser desorption/ionization mass spectrometry imaging (MSI) (Pt-SALDI-MSI) to detect and visualize the spatial distribution of antioxidant additives and organic dyes in polystyre...
Combination of Probe Electrospray Ionization Mass Spectrometry and Mass Spectrometry Imaging to Analyze Plant Alkaloids in Narcissus tazetta [0.03%]
结合探针电喷雾质谱与质谱成像分析小丹花植物生物碱
Kaoru Nakagawa,Tetsuo Iida,Manami Kobayashi et al.
Kaoru Nakagawa et al.
Plant alkaloids are used in a variety of medicines, such as anti-cancer drugs and analgesics. Among these plant alkaloids, galanthamine is an Amaryllidaceae type alkaloid with acetylcholinesterase inhibition activity used in the treatment o...
Atsushi Yamamoto,Naoji Tokai,Rie Kakehashi et al.
Atsushi Yamamoto et al.
This study investigates the mass spectrometric analysis of 10 novel amidoamine oxide compounds, which are innovative hydrogelators for polar solvents. This research aims to identify characteristic fragment patterns for these amide compounds...
Intermolecular Interactions between Aromatic Amino Acids Investigated by Ultraviolet Photodissociation Spectroscopy of Hydrogen-Bonded Clusters of Histidine and Tryptophan Enantiomers [0.03%]
手性组氨酸和色氨酸氢键寡聚物的紫外光解离光谱研究：芳香族氨基酸之间的分子间相互作用
Keitaro Kitahashi,Akimasa Fujihara
Keitaro Kitahashi
Intermolecular interactions between aromatic amino acids were investigated by ultraviolet photodissociation spectroscopy of hydrogen-bonded protonated clusters of histidine (His) and tryptophan (Trp) enantiomers in the gas phase. Product io...
Quantitative Assessment of Core Fucosylation for Congenital Disorders of Glycosylation [0.03%]
核心岩藻糖基化定量评估在先天性糖基化障碍中的应用
Yoshinao Wada,Machiko Kadoya
Yoshinao Wada
Congenital disorders of glycosylation (CDG) include a group of diseases characterized by defects of N-glycan fucosylation. The analytical molecule of choice for the diagnosis of CDG affecting N-glycosylation is serum transferrin: approximat...
Pulsed Nano-Electrospray Ionization Applied to Solutions of Angiotensin II, Bradykinin, and Gramicidin S in Water/Acetonitrile (1/1) with the Addition of 1% Acetic Acid and 10 mM Ammonium Acetate [0.03%]
向乙腈-水(1:1)/1%HAc和10mM醋酸铵溶液中的血管紧张素II、缓激肽及gramicidin S加入脉冲纳米电喷雾离子源研究
Kenzo Hiraoka,Dilshadbek T Usmanov,Satoshi Ninomiya et al.
Kenzo Hiraoka et al.
In our previous work, pulsed nano-electrospray ionization was applied to aqueous mixtures of 5 × 10-6 M angiotensin II (A), bradykinin (B), and gramicidin S (G). It was found that G was totally suppressed by the presence of A and B. In thi...
Data Processing of Product Ion Spectra: Methods to Control False Discovery Rate in Compound Search Results for Untargeted Metabolomics [0.03%]
目标代谢组学中控制化合物搜索结果中的假阳性率的数据处理方法
Fumio Matsuda
Fumio Matsuda
Several database search methods have been employed in untargeted metabolomics utilizing high-resolution mass spectrometry to comprehensively annotate acquired product ion spectra. Recent technical advancements in in silico analyses have fac...
Effect of the Surface Morphology of a Metal Film on Ion Yields in a Platinum-Film Surface-Assisted Laser Desorption/Ionization Mass Spectrometry [0.03%]
金属膜表面形态对其表面辅助激光解吸/离子化质量测定法中离子产额的影响研究
Kotaro Hashimoto,Kyosuke Kaneda,Taichi Shimazaki et al.
Kotaro Hashimoto et al.
Matrix-assisted laser desorption ionization (MALDI) and surface-assisted laser desorption ionization (SALDI) mass spectrometry (MS), which can detect biomolecules and polymers, are widely used in biochemistry and material science. Some comp...