Enantioselective Determination of Carnitine Enantiomers in Food and Supplement Samples by Chiral Liquid Chromatography-Tandem Mass Spectrometry [0.03%]
手性液相色谱-串联质谱法测定食品和膳食补充剂样品中的肉毒碱对映体
Aogu Furusho,Yutaro Nakayama,Hiroki Mizuno et al.
Aogu Furusho et al.
Carnitine (CAR) is an essential compound for animals and plays several physiological roles related to energy production. These functions are possessed by only the l-forms, while the d-forms are known to inhibit the uptake of the l-forms, th...
Interpretation of α-Pinene Mass Spectra in APCI-Like Ambient Mass Spectrometry Using GC-Coupled Atmospheric Pressure Corona Discharge Ionization [0.03%]
气压电晕电离与APCI类似的大气压氛围下α-蒎烯质谱的解释（气相色谱-电晕电离联用）
Ren Ishihara,Daisuke Fukuyama,Kanako Sekimoto
Ren Ishihara
Ambient mass spectrometry (AMS) enables real-time analysis without sample preparation, yet atmospheric pressure corona discharge ionization (APCI)-like ion sources can oxidize analytes in-source, obscuring spectral interpretation. We invest...
Evaluation of LC/MS Methods for Hydrophilic Metabolites to Enable Integration of Human Blood Metabolome Data [0.03%]
评估LC/MS方法以期整合亲水性代谢物和人类血液代谢组数据
Yuri Imado,Masatomo Takahashi,Yuki Soma et al.
Yuri Imado et al.
Information on candidate biomarker metabolites identified in recent disease biomarker discovery research is expected to play a key role in the future of personalized and precision medicine. Liquid chromatography mass spectrometry (LC/MS) is...
Direct Detection of Volatile Organic Compounds through Cationization Using ICP-MS/MS [0.03%]
基于ICP-MS/MS离子化的挥发性有机物直接检测技术研究进展
Takafumi Hirata,Chihaya Kinoshita,Maki Uezono et al.
Takafumi Hirata et al.
We have developed a new analytical technique for the detection of volatile organic compounds (VOCs) using inductively coupled plasma tandem mass spectrometry (ICP-MS/MS). Eight VOCs of various polarities (acetic acid, 2-butanone, pyridine, ...
High Recovery Stop-and-Go Extraction Tips Using Polytetrafluoroethylene Disks Embedded with Poly(styrene-divinylbenzene) Particles for Proteomics [0.03%]
一种用于蛋白质组学的高回收准连续流动提取法聚四氟乙烯离心过滤板及其应用
Hiroto Kakiuchi,Eisuke Kanao,Kosuke Ogata et al.
Hiroto Kakiuchi et al.
The stop-and-go extraction tip (StageTip) is widely used for peptide purification in bottom-up proteomics, yet the original 3M Empore disk is no longer available, prompting the need to evaluate current alternatives. Two types of commerciall...
Instrumental Dispersion Evaluation on Supercritical Fluid Chromatography-Medium Vacuum Chemical Ionization Tandem Mass Spectrometry [0.03%]
超临界流体色谱-中真空化学电离串联质谱的仪器分散性评价
Toshinobu Hondo,Yumi Miyake,Michisato Toyoda
Toshinobu Hondo
Instrumental dispersion in the ion source can severely distort fast chromatographic peaks in supercritical fluid chromatography (SFC)-mass spectrometry (MS). Despite this importance, the dispersion characteristics specific to medium-vacuum ...
The Road to the Full Sequencing of Natural Frogs' Peptides Relying Solely on Mass Spectrometry [0.03%]
完全基于质谱的天然蛙肽的全序列测定之路
T Yu Samgina,A T Lebedev
T Yu Samgina
Amphibians, as one of the leaders of immune resistance, have lived on Earth for hundreds of millions of years. Their dorsal glands produce a cocktail of biologically active peptides that successfully fight microorganisms and even predators....
Fragmentation Patterns of Chlorogenic Acid Homologs in Positive- and Negative-Ion Mode Mass Spectrometry [0.03%]
正负离子模式下氯原酸类化合物的碎裂规律
Atsushi Yamamoto
Atsushi Yamamoto
Chlorogenic acids, esters of hydroxycinnamic acids with quinic acid, are abundant plant metabolites with over 400 known derivatives. Due to the limited availability of commercial standards, mass spectrometry fragmentation data are essential...
Stepwise Monitoring of Ligand Exchange on Gold Nanorods: From Cetyltrimethylammonium Bromide to Thiol-Functionalized Biocompatible Phosphorylcholine Using Matrix-Free LDI-TOF Mass Spectrometry [0.03%]
基于矩阵自由LDI-TOF质谱的金纳米棒表面配体交换监测：从溴代十四烷基三甲铵到生物相容性磷酸胆碱巯基衍生物
Hideya Kawasaki,Yasuhiko Iwasaki,Ryuichi Arakawa
Hideya Kawasaki
Gold nanorods (AuNRs) possess anisotropic optical and electronic properties, primarily determined by their aspect ratio and surface ligands, which make them attractive for applications in sensing, catalysis, and nanomedicine. While these na...