Synthesis of Reference Standards and Optimization of UPLC-ESI-MS/MS Method for Quantification of Organosulfates in PM2.5 [0.03%]
PM2.5中有机硫酸酯定量的UPLC-ESI-MS/MS分析方法的优化及标准参考物质的合成
Zhichao Dong,Subba Rao Devineni,Xiaoli Fu et al.
Zhichao Dong et al.
Rationale: Atmospheric PM2.5 affects climate by altering radiative forcing and harms human health. Organosulfates (OSs) intensify these impacts, as cloud condensation nuclei modify the radiation balance and increase toxic...
Differentiating Δ8-THC and Δ9-THC Isomers: Mass Spectrometry Analysis and Computational Explanation [0.03%]
Δ8-四氢大麻酚和Δ9-四氢大麻酚异构体的区分：质谱分析与计算解释
Xing Ke,Xi Chen,Xianxin Chen et al.
Xing Ke et al.
Rationale: Isomerism is common in new psychoactive substances (NPSs). Due to insignificant differences in their structure and properties, NPS isomers are hard to separate and identify, posing challenges for forensic labor...
Comparative Metabolomic Analysis of Benzyl Adenine and Meta-Topolin Riboside Treatments in "Tainung No. 1" Passion Fruit [0.03%]
“台农一号”人心果的benzyl腺嘌呤和meta-topolin核糖苷处理的比较代谢组学分析
Ying-Chun Chen,Han-Ju Chien,Yi-Feng Zheng et al.
Ying-Chun Chen et al.
Rationale: Meta-topolin riboside (mTR) has shown superior effects over benzyladenine (BA) in promoting root and shoot development in passion fruit tissue culture, yet its underlying mechanisms remain unclear. Understandin...
Comparison of Activation Techniques for the Identification of Nitazene Analogs Using the NIST/NIJ Data Interpretation Tool [0.03%]
NIST/NIJ 数据解析工具识别硝替苯类似物的不同离子化技术比较研究
Emma K Hardwick,Alleigh N Couch,J Tyler Davidson
Emma K Hardwick
Rationale: Direct analysis in real time (DART) and electrospray ionization (ESI) are commonly used in forensic science and are combined with different activation techniques, which impact the degree and type of fragmentati...
Critical Considerations for TOF-SIMS Sample Preparation and Parameter Optimization [0.03%]
关于飞行时间二次离子质谱样品制备及参数优化的关键考量因素分析报告
Chuqi Shi,Yanfang Pan,Qin Yang et al.
Chuqi Shi et al.
Rationale: Time-of-flight secondary ion mass spectrometry (TOF-SIMS) is an ultrasensitive surface analysis technique capable of providing comprehensive elemental and molecular characterization of sample surfaces. The sele...
A Comparative In Vitro Metabolic Study of Butonitazene Using Camel Liver and Fungus Cunninghamella elegans for Doping Control Applications [0.03%]
一种新的兴奋剂布托尼唑的体内代谢比较研究——反兴奋剂应用的角度基于骆驼肝和申根小杯霉菌的体外实验研究报告
Ansar Babu Palathinkal,S Farook Basha,Saraswathy Laya et al.
Ansar Babu Palathinkal et al.
Rationale: The growing emergence of synthetic opioids in the nitazene subclass such as butonitazene poses a significant challenge for doping control and toxicological monitoring. Butonitazene is a highly potent synthetic ...
How Well Do We Know VPDB-Part 2: Interlaboratory Assessment of Existing δ13CVPDB Reference Materials [0.03%]
我们对VPDB了解多少（第二部分）：现有δ13CVPDB参考物质的实验室间评估
Heiko Moossen,Pharahilda M Steur,Federica Camin et al.
Heiko Moossen et al.
Rationale: In January 2024, the IAEA experts meeting endorsed both δ13C scales that are currently used within the scientific community: the Vienna Peedee belemnite (VPDB) δ13C scale defined by NBS 19 with a value of +1....
A Stability Study of Buthiazide, Mebutizide, and Bemethizide in Urinary and Aqueous Matrices [0.03%]
布噻嗪、美布替嗪和苄甲噻嗪在尿液和水基质中的稳定性研究
Guanglei Zhou,Lu Liu,Kuan Yan et al.
Guanglei Zhou et al.
Rationale: Diuretics are banned in sports in- and out-of-competition without applicable threshold or reporting levels, and are classified as S5 Diuretics & Masking Agents by the World Anti-Doping Agency. In 2024, two case...
Alkali Halides as Matrices for the Detection of Saccharides and PEG600 by Electrospray Droplet Impact/Secondary Ion Mass Spectrometry (EDI/SIMS) [0.03%]
基于喷滴撞击解吸二级质谱的糖类及聚乙二醇基质效应研究：卤化碱金属矩阵的选择与优化
Rio Takaishi,Stephanie Rankin-Turner,Satoshi Ninomiya et al.
Rio Takaishi et al.
Rationale: Saccharides are often analyzed by matrix-assisted laser desorption/ionization mass spectrometry and electrospray ionization mass spectrometry. In this study, electrospray droplet impact/secondary ion mass spect...
Advanced Computational Approaches for Multimodal Fusion in Mass Spectrometry Imaging [0.03%]
用于质谱成像的多模态融合的高级计算方法
Lei Guo
Lei Guo
Mass spectrometry imaging (MSI) enables the spatially resolved mapping of molecular distributions within biological tissues, which has become an indispensable analytical technique across diverse biomedical applications. Nevertheless, the ut...