Results 11 to 20 of about 3,602,918 (298)

Extractive electrospray ionization mass spectrometry for analytical evaluation and synthetic preparation of pharmaceutical chemicals

Frontiers in Pharmacology, 2023
Extraction electrospray ionization mass spectrometry (EESI-MS), due to the unique configuration of its ionization module, enables the effective ionization of trace molecules of interest in samples containing complex matrices with high sensitivity, high ...
Manman Qin, Manman Qin, Manman Qin, Yuqing Qian, Lu Huang, Chao Zhong, Chao Zhong, Mingdong Li, Jun Yu, Huanwen Chen   +9 more
doaj   +3 more sources

An Isotope-Induced Polarity Bias in Electrospray Ionization Mass Spectrometry [PDF]

ACS Measurement Science Au
Qi Ying Neo, Henry T. P. Annecke, Irena Papageorgiou, Axel Leppert, Katja Petzold, Kevin Pagel, Ali Miserez, Erik G. Marklund, Nicklas Österlund, Michael Landreh   +9 more
doaj   +2 more sources

Nanobubbles in Electrospray Ionization Mass Spectrometry. [PDF]

Anal Chem
Nanobubbles (NBs) are very small gas-filled cavities in solvents, and when their sizes reach diameters around 200 nm, they remain in solution for extended periods of time, featuring special chemical and physical properties. Here, we investigate the application of NBs in electrospray ionization.
Joseph G, Binny B, Venter AR.
europepmc   +3 more sources

A:Recent advances in ambient electrospray ionization technologies [PDF]

Records of Pharmaceutical & Biomedical Sciences, 2020
Mass spectrometry is one of the most powerful techniques for detection and identification. Due to its sensitivity and selectivity, exact mass of analytes, and in effect, their relative fragments, allow for total structure information.
Sara Amer, Walaa Zarad, Heba El Gendy, Randa Abdel Salam, Ghada Hadad, Samy Emara, Tsutoma Masujima   +6 more
doaj   +1 more source

Recent Applications of Ambient Ionization Mass Spectrometry for Environmental Pollutant Detection [PDF]

Zhipu Xuebao, 2023
Along with the industrial development and human society progress, large number of pollutants have been discharged to induce the environmental pollution, which have attracted global attentions.
QIN Jing-yi, OUYANG Jin, NA Na
doaj   +1 more source

Basic principle from electrospray ionization to soft ionization mass spectrometry and development of ion source [PDF]

, 2023
Since the electrospray phenomenon was discovered, there is still an unsolved mystery about the prinple of generating charged analyte in the soft ionization phenomenon which represented by ESI.
jiehong, luo, jiehong luo
core   +1 more source

Dynamic Additive Scanning for Precise Control in Electrospray Ionization Mass Spectrometry [PDF]

ACS Measurement Science Au
I-Ting Wu, Decibel P. Elpa, Hsien-Ning Chien, Pawel L. Urban   +3 more
doaj   +2 more sources

Enhancing Metabolomic Coverage in Positive Ionization Mode Using Dicationic Reagents by Infrared Matrix-Assisted Laser Desorption Electrospray Ionization

Metabolites, 2021
Mass spectrometry imaging is a powerful tool to analyze a large number of metabolites with their spatial coordinates collected throughout the sample. However, the significant differences in ionization efficiency pose a big challenge to metabolomic mass ...
Ying Xi, David C. Muddiman
doaj   +1 more source

Basic principle from electrospray ionization to soft ionization mass spectrometry and development of ion source:part Ⅰ [PDF]

, 2023
Since the electrospray phenomenon was discovered, there is still an unsolved mystery about the prinple of generating charged analyte in the soft ionization phenomenon which represented by ESI.
jiehong, luo
core   +2 more sources

Research Progress of Highly Selective Solid Substrate Electrospray Ionization Sources for Mass Spectrometry [PDF]

Zhipu Xuebao, 2022
Solid substrate electrospray mass spectrometry is an ambient mass spectrometry method that involves carrying, ionization and detection of the samples. This approach has a wide range of applications, and which is appropriate for rapid mass spectrometric ...
ZHANG Feng;MU Guo-dong;LIU Tong
doaj