SMART: A data reporting standard for mass spectrometry imaging
AbstractMass spectrometry imaging (MSI) is an important analytical technique that simultaneously reports the spatial location and abundance of detected ions in biological, chemical, clinical, and pharmaceutical studies. As MSI grows in popularity, it has become evident that data reporting varies among different research groups and between techniques. The lack of consistency in data reporting inherently creates additional challenges in comparing intra- and inter-laboratory MSI data. In this tutorial, we propose a unified data reporting system, SMART, based on the common features shared between techniques. While there are li...
Source: Journal of Mass Spectrometry - February 5, 2023 Category: Chemistry Authors: Ying Xi,
Alexandria L. Sohn,
Alena N. Joignant,
Stephanie M. Cologna,
Boone M. Prentice,
David C. Muddiman Tags: TUTORIAL Source Type: research
Identification of bibenzyls and evaluation of imitative wild planting techniques in Dendrobium officinale by HPLC ‐ESI‐MSn
This study provided a scientific reference for controlling the quality of bibenzyls inDendrobium officinale, developing the cultivation technology and improving the quality ofDendrobium officinale.Highlights
HPLC-ESI-MS/MS method for the analysis of bibenzyls and bis (bibenzyls) inDendrobium officinale.
Easy-to-use method facilitating rapid measurement of large sample quantities.
The method requires only small volumes of samples for the analysis.
Applicable for the establishment of Chinese medicine studies and the quality control standard of Chinese herbs. (Source: Journal of Mass Spectrometry)
Source: Journal of Mass Spectrometry - February 5, 2023 Category: Chemistry Authors: Yuanjun Meng,
Yawen Wang,
Lin Zhang,
Jinyan Li,
Li Hu,
Zhanghua Wu,
Li'e Yang,
Gang Wei,
Yuechun Huang Tags: RESEARCH ARTICLE Source Type: research
Mass spectrometry molecular fingerprinting of mineral and synthetic lubricant oils
AbstractThe molecular composition of lubricating oils has a strong impact on how automotive engines function, but the techniques used to monitor the quality parameters of these oils only inspect their gross physical-chemical properties such as viscosity, color, and bulk spectroscopy profiles; hence, bad-quality, adulterated or counterfeit oils are had to detect. Herein, we investigated the ability of direct infusion electrospray ionization mass spectrometry (ESI-MS) to provide simple, rapid but characteristic fingerprint profiles for such oils of the mineral and synthetic types. After a simple aqueous extraction, ESI-MS an...
Source: Journal of Mass Spectrometry - February 2, 2023 Category: Chemistry Authors: Caroline P. Carvalho,
Adriano J. R. Silva,
Rosineide C. Lima,
Marcos N. Eberlin Tags: RESEARCH ARTICLE Source Type: research
Comparison of AMS, TIMS and SIMS techniques for determining uranium isotope ratios in individual particles
AbstractThe determination of isotope ratios in individual uranium particles is very important for nuclear safeguards. In this work, accelerator mass spectrometry (AMS), thermal ionization mass spectrometry (TIMS) and secondary ion mass spectrometry (SIMS) were applied to isotope ratio analysis of individual uranium particles and compared in terms of background, measurement accuracy and efficiency. Several individual uranium particles (1 −7 μm) from certified reference materials were used as samples. The results show that the average values of blank counting rate of235U for AMS, FT-TIMS (FT: fission track), SEM-TIMS (SEM...
Source: Journal of Mass Spectrometry - January 26, 2023 Category: Chemistry Authors: Jie Gao,
Ming He,
Yan Shen,
Chang ‐Kun Xu,
Yong‐Gang Zhao Tags: RESEARCH ARTICLE Source Type: research
Quasi ‐continuous infrared matrix‐assisted laser desorption electrospray ionization source coupled to a quadrupole time‐of‐flight mass spectrometer for direct analysis from well plates
AbstractHigh-throughput screening (HTS) is a technique mostly used by pharmaceutical companies to rapidly screen multiple libraries of compounds to find drug hits with biological or pharmaceutical activity. Mass spectrometry (MS) has become a popular option for HTS given that it can simultaneously resolve hundreds to thousands of compounds without additional chemical derivatization. For this application, it is convenient to do direct analysis from well plates. Herein, we present the development of an infrared matrix-assisted laser desorption electrospray ionization (IR-MALDESI) source coupled directly to an Agilent 6545 fo...
Source: Journal of Mass Spectrometry - January 25, 2023 Category: Chemistry Authors: Cristina Arciniega,
Kenneth P. Garrard,
Jacob P. Guymon,
Jeffrey G. Manni,
Alex Apffel,
John C. Fjeldsted,
David C. Muddiman Tags: RESEARCH ARTICLE Source Type: research
SMART: A Data Reporting Standard for Mass Spectrometry Imaging
AbstractMass spectrometry imaging (MSI) is an important analytical technique that simultaneously reports the spatial location and abundance of detected ions in biological, chemical, clinical and pharmaceutical studies. As MSI grows in popularity, it has become evident that data reporting varies among different research groups and between techniques. The lack of consistency in data reporting inherently creates additional challenges in comparing intra- and inter-laboratory MSI data. In this tutorial, we propose a unified data reporting system, SMART, based on the common features shared between techniques. While there are lim...
Source: Journal of Mass Spectrometry - January 23, 2023 Category: Chemistry Authors: Ying Xi,
Alexandria L. Sohn,
Alena N. Joignant,
Stephanie M. Cologna,
Boone M. Prentice,
David C. Muddiman Tags: TUTORIAL Source Type: research
Identification of Bibenzyls and Evaluation of Imitative Wild Planting Techniques in Dendrobium officinale by HPLC ‐ESI‐MSn
This study provided a scientific reference for controlling the quality of bibenzyls inDendrobium officinale, developing the cultivation technology and improving the quality ofDendrobium officinale. (Source: Journal of Mass Spectrometry)
Source: Journal of Mass Spectrometry - January 17, 2023 Category: Chemistry Authors: Yuanjun Meng,
Yawen Wang,
Lin Zhang,
Jinyan Li,
Li Hu,
Zhanghua Wu,
Li ’e Yang,
Gang Wei,
Yuechun Huang Tags: RESEARCH ARTICLE Source Type: research
Quasi ‐Continuous IR‐MALDESI Source Coupled to a Q‐TOF Mass Spectrometer for Direct Analysis from Well Plates
AbstractHigh-throughput screening (HTS) is a technique mostly used by pharmaceutical companies to rapidly screen multiple libraries of compounds to find drug hits with biological or pharmaceutical activity. Mass spectrometry (MS) has become a popular option for HTS given that it can simultaneously resolve hundreds to thousands of compounds without additional chemical derivatization. For this application it is convenient to do direct analysis from well plates. Herein, we present the development of an infrared matrix-assisted laser desorption electrospray ionization (IR-MALDESI) source coupled directly to an Agilent 6545 for...
Source: Journal of Mass Spectrometry - January 10, 2023 Category: Chemistry Authors: Cristina Arciniega,
Kenneth P. Garrard,
Jacob P. Guymon,
Jeffrey G. Manni,
Alex Apffel,
John C. Fjeldsted,
David C. Muddiman Tags: RESEARCH ARTICLE Source Type: research
Probing the Pyrolysis of Ethyl Formate in the Dilute Gas Phase by Synchrotron Radiation and Theory
AbstractThe thermal decomposition of the atmospheric constituent ethyl formate was studied by coupling flash pyrolysis with imaging photoelectron photoion coincidence (iPEPICO) spectroscopy using synchrotron VUV radiation at the Swiss Light Source (SLS). iPEPICO allows photoion mass-selected threshold photoelectron spectra (ms-TPES) to be obtained for pyrolysis products. By threshold photoionization and ion imaging, parent ions of neutral pyrolysis products and dissociative photoionization products could be distinguished, and multiple spectral carriers could be identified in several ms-TPES. The TPES and mass-selected TPES...
Source: Journal of Mass Spectrometry - January 5, 2023 Category: Chemistry Authors: Bethany Lowe,
Alejandro L. Cardona,
Juana Salas,
Andras Bodi,
Paul M. Mayer,
Maxi A. Burgos Paci Tags: RESEARCH ARTICLE Source Type: research
Quantitative analysis capability of DIUTHAME mass spectrometry verified by acetylcholinesterase enzyme ‐catalyzed reaction assays By Yasuhide Naito
(Source: Journal of Mass Spectrometry)
Source: Journal of Mass Spectrometry - December 27, 2022 Category: Chemistry Authors: Yasuhide Naito Tags: COVER STORY Source Type: research
Cover Picture
(Source: Journal of Mass Spectrometry)
Source: Journal of Mass Spectrometry - December 23, 2022 Category: Chemistry Tags: COVER PICTURE Source Type: research
