389 hasil
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Zhipu Xuebao
Scopus
ISSN 1004-2997 · Editorial Board of Journal of Chinese Mass Spectrometry Society · 389 artikel di indeks
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Artikel Jurnal
Determination of Tantalum, Sulfur, Phosphorus and Silver in High Purity Hafnium by ICP-MS/MS Following Precipitation Separation
A method of inductively coupled plasma tandem mass spectrometry (ICP-MS/MS) under O2 and NH3 reaction modes was developed for the determination of tantalum (Ta), sulfur (S), phosphorus (P), and silver (Ag) in high-purity hafnium (Hf), and the reaction mechanisms were investigated. Ammonia…
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Artikel Jurnal
Direct Quantitative Analysis of n-Pentane in Exhaled Breath Using NO2+ Chemical Ionization Time-of-Flight Mass Spectrometry
The presence of n-pentane in breath mainly originates from lipid peroxidation within the body, a process triggered by free radicals attacking phospholipids in cell membranes. When the level of reactive oxygen species (ROS) increases in the body, it can further exacerbate lipid peroxidation, leading…
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Artikel Jurnal
Direct and Rapid Analysis of Volatile Components in Flavors and Fragrances by Low-Pressure Photoionization Mass Spectrometry
Tobacco flavors and fragrances play an important role in improving the aroma quality and smoking taste of cigarettes, and the addition of these ingredients is an important part of the cigarette production process. The rapid characterization of the chemical composition of tobacco flavors and…
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Artikel Jurnal
Development and Application of a Mass Spectrometry Platform for On-line Monitoring of Ion Products Generated by High-Voltage Air Discharge
Indoor air pollution poses significant health risks due to particulate matter (PM) and gaseous pollutants. Air negative ions (NAIs) generated by high-voltage discharge can effectively remove PM, but require precise monitoring to optimize performance and assess environmental impacts. However, the…
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Artikel Jurnal
Source Analysis of Benzene Homologues Based on Stable Carbon Isotopes
Benzene homologues, including compounds such as benzene, toluene, and xylene, have become key pollutants of concern in food, drug, and environmental safety cases due to their significant carcinogenicity and ecotoxicity. Accurately tracing the source of these pollutants is of great significance for…
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Artikel Jurnal
Study on Extraction Methods of Fatty Acids from Different Tissues of Cetaceans Based on GC-Q-TOF MS
Analyzing fatty acid profiles in cetacean organs is crucial for evaluating the toxicological impacts of pollutants (e.g., heavy metals, persistent organic pollutants), yet a standardized, eco-friendly, and universally applicable method for fatty acid extraction from multiple tissues of marine…
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Artikel Jurnal
Identification of Glyceride Using Full Collision Energy Ramp-Pseudo-MS3 Spectrum Matching Strategy
Glycerides (Glys), a class of esterification products of glycerol and fatty acids, serve as significant pathological markers for a variety of metabolic diseases. From the structural perspective, the different linkages (straight- or branched-chain), C＝C bond positions, and other factors of fatty…
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Artikel Jurnal
Design and Simulation of Double-Helix Ion Funnel
The ion guide system, functioning as a pivotal component in mass spectrometers, governs ion regulation and transmission along the ion transfer route, and serves as an important part influencing the performance of mass spectrometry instruments. In this work, a novel double-helix ion funnel (DH-IF)…
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Artikel Jurnal
Research on Automatic Tuning of Quadurpole Mass Resolution in Quadurpole-Liner Ion Trap Tandem Mass Spectrometry
In order to achieve quadrupole mass resolution and precision automatic tuning of a radial excitation mode quadrupole ion trap tandem mass spectrometer, a set of algorithms was developed that can freely set the target peak width at half maximum and automatically adjust instrument parameters. This…
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Artikel Jurnal
VUV Photoionization Molecular Beam Mass Spectrometer and Its Application in Detection of Reactive Intermediates in Photolysis and Plasma-Assisted Reactions
The detection of intermediate products in chemical reactions is of great significance for understanding reaction mechanisms. Due to the characteristics of intermediates, such as low concentration, short lifetime, and diverse species, their detection presents a great challenge. Molecular beam mass…
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Artikel Jurnal
Advances in Breath Analysis-Based Disease Diagnosis Technology and Standardization Requirements
The composition and content of volatile organic compounds (VOCs) in exhaled breath are closely related to change in the human physiological state. Some biosignature molecules generated by human metabolism, including disease marker molecules, are expelled from the body via exhaled breath. By…
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Artikel Jurnal
Detection of C40 Oxygenated Compounds in Marine Sediments Based on UPLC-Orbitrap MS
Terpenoids are a class of naturally occurring lipids biosynthesized by organisms, characterized by their isoprenoid unit structure. Following the death of an organism, these chemically stable biomarkers become buried and preserved in geological sediments. The characterization of the molecular…
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Artikel Jurnal
Identification of Chemical Components in Taraxacum kok-saghyz Rodin and Investigation of Mass Spectrometric Fragmentation Pathways
Taraxacum kok-saghyz Rodin, a perennial herbaceous plant of the genus Taraxacum (Asteraceae), has widely distributed in Europe, the Americas, and northwestern and northeastern China. However, the specific bioactive compounds responsible for its pharmacological effects remain uncharacterized…
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Artikel Jurnal
Advances in Mass Spectrometry Technology for Residual Gas Analysis
Residual gas analysis (RGA) is a crucial and widely adopted technique for determining the precise composition, mole fractions, and trace-level contents of gases within sealed environments. In comparison with other analytical instruments such as gas chromatograph, infrared spectrometer, and…
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Artikel Jurnal
Research on Compact Accelerator Mass Spectrometry Measurement for 14C
Carbon-14 (14C) is a key environmental tracer nuclide that plays an essential role in the biogeochemical cycling of the Earth system and has been widely applied in environmental science, geochronology, and life sciences. Accelerator mass spectrometry (AMS) is currently the most sensitive analytical…
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Artikel Jurnal
Investigation of the Distribution and Accumulation Patterns of Five Key Components of Zhi-Zi Bai-Pi Decoction in Experimental Arthritis Rats Based on UPLC-MS/MS Technique
This study established and validated an ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) analytical method for the simultaneous determination of plasma pharmacokinetic characteristics and major-organ tissue distribution profiles of five key active components, namely…
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Artikel Jurnal
Chemical Composition Analysis of Shengmaiyin (Red Ginseng Formula) Based on UHPLC-Q-Orbitrap MS/MS and Molecular Networking
Traditional Chinese medicine (TCM), with its long history in Asia, has become a focal point in the life sciences in recent years. Among the classic TCM formulas, Shengmaiyin has been widely used in the treatment of coronary heart disease and diabetes. However, the complex chemical composition, low…
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Artikel Jurnal
Research on the Full Component Profiling and Compatibility Rules of Xiayuxue Decoction Using High Performance Liquid Chromatography-Quadrupole Orbitrap High-Resolution Mass Spectrometry
This study employed ultra-high performance liquid chromatography coupled with quadrupole-Orbitrap high-resolution mass spectrometry (UPLC-Q-Orbitrap-MS), combined with the Compound Discoverer and Progenesis QI data processing platforms, to systematically analyze the chemical constituents of the…
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Artikel Jurnal
Study of Catalytic Performance and Reaction Mechanism of Low-Temperature Catalytic Cracking of Hight-Density Polyethylene to Liquid Products Over Pt/ZSM-5 Based on Mass Spectrometry
The global plastic waste crisis is worsening, and effective chemical upcycling technologies are urgently needed. Upgrading waste polyolefins into valuable liquid fuels under mild conditions is a promising route for plastic recycling. However, the complex reaction networks involved make it difficult…
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Artikel Jurnal
Study on Hepatic Metabolism of Cuscuta chinensis-Lycium barbarum Herb Pair in Rats with Postmenopausal Osteoporosis
Postmenopausal osteoporosis (PMOP) is a prevalent age-related skeletal disorder characterized by estrogen deficiency-induced bone loss, bone microstructural deterioration, and increased fracture risk. Current therapeutic strategies such as estrogen replacement therapy are limited by potential side…