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Mass Spectrometry Reviews

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https://www.readbyqxmd.com/read/28627748/on-line-reaction-monitoring-by-mass-spectrometry-modern-approaches-for-the-analysis-of-chemical-reactions
#1
REVIEW
Andrew Ray, Tony Bristow, Chris Whitmore, Jackie Mosely
The application of on-line mass spectrometry for direct analysis of chemical and other types of process continues to grow in importance and impact. The ability of the technique to characterize many aspects of a chemical reaction such as product and impurity formation, along with reactant consumption in a single experiment is key to its adoption and development. Innovations in ionization techniques and mass spectrometry instrumentation are enabling this adoption. An increasing range of ambient ionization techniques make on-line mass spectrometry applicable to a large range of chemistries...
June 19, 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/28621817/gas-phase-basicities-of-polyfunctional-molecules-part-6-cyanides-and-isocyanides
#2
REVIEW
Guy Bouchoux
This paper gathers structural and thermochemical informations related to the gas-phase basicity of molecules containing cyanides (nitriles) and isocyanides (isonitriles) functional groups. It constitutes the sixth part of a general review devoted to gas-phase basicities of polyfunctional compounds. A large corpus of cyanides and isocyanides molecules is examined under seven major chapters. In the first one, a rapid overview of the definitions and methods leading to gas-phase basicity, GB, proton affinity, PA, and protonation entropy, Δp S°, is given...
June 16, 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/28509357/characterization-of-microbial-mixtures-by-mass-spectrometry
#3
REVIEW
Todd R Sandrin, Plamen A Demirev
MS applications in microbiology have increased significantly in the past 10 years, due in part to the proliferation of regulator-approved commercial MALDI MS platforms for rapid identification of clinical infections. In parallel, with the expansion of MS technologies in the "omics" fields, novel MS-based research efforts to characterize organismal as well as environmental microbiomes have emerged. Successful characterization of microorganisms found in complex mixtures of other organisms remains a major challenge for researchers and clinicians alike...
May 16, 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/28453879/computers-in-mass-spectrometry
#4
EDITORIAL
(no author information available yet)
No abstract text is available yet for this article.
April 28, 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/28436590/identification-of-small-molecules-using-accurate-mass-ms-ms-search
#5
REVIEW
Tobias Kind, Hiroshi Tsugawa, Tomas Cajka, Yan Ma, Zijuan Lai, Sajjan S Mehta, Gert Wohlgemuth, Dinesh Kumar Barupal, Megan R Showalter, Masanori Arita, Oliver Fiehn
Tandem mass spectral library search (MS/MS) is the fastest way to correctly annotate MS/MS spectra from screening small molecules in fields such as environmental analysis, drug screening, lipid analysis, and metabolomics. The confidence in MS/MS-based annotation of chemical structures is impacted by instrumental settings and requirements, data acquisition modes including data-dependent and data-independent methods, library scoring algorithms, as well as post-curation steps. We critically discuss parameters that influence search results, such as mass accuracy, precursor ion isolation width, intensity thresholds, centroiding algorithms, and acquisition speed...
April 24, 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/28621908/correction
#6
(no author information available yet)
No abstract text is available yet for this article.
July 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/27074547/application-of-mass-spectrometry-in-the-characterization-of-chemicals-in-coal-derived-liquids
#7
REVIEW
Fang-Jing Liu, Maohong Fan, Xian-Yong Wei, Zhi-Min Zong
Coal-derived liquids (CDLs) are primarily generated from pyrolysis, carbonization, gasification, direct liquefaction, low-temperature extraction, thermal dissolution, and mild oxidation. CDLs are important feedstocks for producing value-added chemicals and clean liquid fuels as well as high performance carbon materials. Accordingly, the compositional characterization of chemicals in CDLs at the molecular level with advanced analytical techniques is significant for the efficient utilization of CDLs. Although reviews on advancements have been rarely reported, great progress has been achieved in this area by using gas chromatography/mass spectrometry (GC/MS), two-dimensional GC-time of flight mass spectrometry (GC × GC-TOFMS), and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS)...
July 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/26999732/the-allure-of-mass-spectrometry-from-an-earlyday-chemist-s-perspective
#8
REVIEW
László Tőkés
This reminiscing review article is an account of the author's fascination and involvements with mass spectrometry from the perspective of an organic chemist with an interest in natural product chemistry. It covers a period from 1961 through the mid 1990s as mass spectrometry evolved form a novelty technique to become a most widely used analytical technique. Following a brief synopsis of my pathway to mass spectrometry, my research efforts in this field are presented with a focus mainly on evolving principles and technologies which I had personal involvements with...
July 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/26757103/a-review-on-the-determination-of-isotope-ratios-of-boron-with-mass-spectrometry
#9
REVIEW
Suresh Kumar Aggarwal, Chen-Feng You
The present review discusses different mass spectrometric techniques-viz, thermal ionization mass spectrometry (TIMS), inductively coupled plasma mass spectrometry (ICPMS), and secondary ion mass spectrometry (SIMS)-used to determine (11) B/(10) B isotope ratio, and concentration of boron required for various applications in earth sciences, marine geochemistry, nuclear technology, environmental, and agriculture sciences, etc. The details of the techniques-P-TIMS, which uses Cs2 BO2(+) , N-TIMS, which uses BO2(-) , and MC-ICPMS, which uses B(+) ions for bulk analysis or B(-) and B(+) ions for in situ micro-analysis with SIMS-are highlighted...
July 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/26728195/algorithms-and-design-strategies-towards-automated-glycoproteomics-analysis
#10
REVIEW
Han Hu, Kshitij Khatri, Joseph Zaia
Glycoproteomics involves the study of glycosylation events on protein sequences ranging from purified proteins to whole proteome scales. Understanding these complex post-translational modification (PTM) events requires elucidation of the glycan moieties (monosaccharide sequences and glycosidic linkages between residues), protein sequences, as well as site-specific attachment of glycan moieties onto protein sequences, in a spatial and temporal manner in a variety of biological contexts. Compared with proteomics, bioinformatics for glycoproteomics is immature and many researchers still rely on tedious manual interpretation of glycoproteomics data...
July 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/28394457/john-hayes-1940-2017
#11
Paul Vouros, Dom Desiderio
No abstract text is available yet for this article.
May 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/26633258/a-mass-spectrometric-insight-into-the-origins-of-benign-gynecological-disorders
#12
REVIEW
Huiliang Yang, Wayne Bond Lau, Bonnie Lau, Yu Xuan, Shengtao Zhou, Linjie Zhao, Zhongyue Luo, Qiao Lin, Ning Ren, Xia Zhao, Yuquan Wei
Applications of mass spectrometry (MS) are rapidly expanding and encompass molecular and cellular biology. MS aids in the analysis of in vivo global molecular alterations, identifying potential biomarkers which may improve diagnosis and treatment of various pathologies. MS has added new dimensionality to medical research. Pioneering gynecologists now study molecular mechanisms underlying female reproductive pathology with MS-based tools. Although benign gynecologic disorders including endometriosis, adenomyosis, leiomyoma, and polycystic ovarian syndrome (PCOS) carry low mortality rates, they cause significant physical, mental, and social detriments...
May 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/26270629/analysis-of-carbohydrates-and-glycoconjugates-by-matrix-assisted-laser-desorption-ionization-mass-spectrometry-an-update-for-2011-2012
#13
REVIEW
David J Harvey
This review is the seventh update of the original article published in 1999 on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2012. General aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, and fragmentation are covered in the first part of the review and applications to various structural types constitute the remainder. The main groups of compound are oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals...
May 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/25988849/recent-developments-in-atmospheric-pressure-photoionization-mass-spectrometry
#14
REVIEW
Tiina J Kauppila, Jack A Syage, Thorsten Benter
Recent developments in atmospheric pressure photoionization (APPI), which is one of the three most important ionization techniques in liquid chromatography-mass spectrometry, are reviewed. The emphasis is on the practical aspects of APPI analysis, its combination with different separation techniques, novel instrumental developments - especially in gas chromatography and ambient mass spectrometry - and the applications that have appeared in 2009-2014. © 2015 Wiley Periodicals, Inc. Mass Spec Rev 36:423-449, 2017...
May 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/26280357/mass-spectrometry-in-the-pharmacokinetic-studies-of-anticancer-natural-products
#15
REVIEW
Sara Crotti, Bianca Posocco, Elena Marangon, Donato Nitti, Giuseppe Toffoli, Marco Agostini
In the history of medicine, nature has represented the main source of medical products. Indeed, the therapeutic use of plants certainly goes back to the Sumerian and Hippocrates and nowadays nature still represents the major source for new drugs discovery. Moreover, in the cancer treatment, drugs are either natural compounds or have been developed from naturally occurring parent compounds firstly isolated from plants and microbes from terrestrial and marine environment. A critical element of an anticancer drug is represented by its severe toxicities and, after administration, the drug concentrations have to remain in an appropriate range to be effective...
March 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/25975720/applications-of-dart-ms-for-food-quality-and-safety-assurance-in-food-supply-chain
#16
REVIEW
Tianyang Guo, Wei Yong, Yong Jin, Liya Zhang, Jiahui Liu, Sai Wang, Qilong Chen, Yiyang Dong, Haijia Su, Tianwei Tan
Direct analysis in real time (DART) represents a new generation of ion source which is used for rapid ionization of small molecules under ambient conditions. The combination of DART and various mass spectrometers allows analyzing multiple food samples with simple or no sample treatment, or in conjunction with prevailing protocolized sample preparation methods. Abundant applications by DART-MS have been reviewed in this paper. The DART-MS strategy applied to food supply chain (FSC), including production, processing, and storage and transportation, provides a comprehensive solution to various food components, contaminants, authenticity, and traceability...
March 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/25962722/mass-spectrometric-and-charge-density-studies-of-organometallic-clusters-photoionized-by-gigawatt-laser-pulses
#17
REVIEW
Purav Badani, Soumitra Das, Pramod Sharma, Rajesh Kumar Vatsa
Clusters on exposure to nanosecond laser pulses of gigawatt intensity exhibit a variety of photo-chemical processes such as fragmentation, intracluster reaction, ionization, Coulomb explosion, etc. Present article summarizes the experimental results obtained in our laboratory utilizing time-of-flight mass spectrometer which deal with one such aspect of cluster photochemistry related to generation of multiply charged atomic ions upon excessive ionization of cluster constituents (Coulomb explosion) at low intensity laser field (∼10(9)  W/cm(2) )...
March 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/25881008/mass-spectrometric-based-approaches-in-urine-metabolomics-and-biomarker-discovery
#18
REVIEW
Mona M Khamis, Darryl J Adamko, Anas El-Aneed
Urine metabolomics has recently emerged as a prominent field for the discovery of non-invasive biomarkers that can detect subtle metabolic discrepancies in response to a specific disease or therapeutic intervention. Urine, compared to other biofluids, is characterized by its ease of collection, richness in metabolites and its ability to reflect imbalances of all biochemical pathways within the body. Following urine collection for metabolomic analysis, samples must be immediately frozen to quench any biogenic and/or non-biogenic chemical reactions...
March 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/25869149/isotopocule-analysis-of-biologically-produced-nitrous-oxide-in-various-environments
#19
REVIEW
Sakae Toyoda, Naohiro Yoshida, Keisuke Koba
Natural abundance ratios of isotopocules, molecules that have the same chemical constitution and configuration, but that only differ in isotope substitution, retain a record of a compound's origin and reactions. A method to measure isotopocule ratios of nitrous oxide (N2 O) has been established by using mass analysis of molecular ions and fragment ions. The method has been applied widely to environmental samples from the atmosphere, ocean, fresh water, soils, and laboratory-simulation experiments. Results show that isotopocule ratios, particularly the (15) N-site preference (difference between isotopocule ratios (14) N(15) N(16) O/(14) N(14) N(16) O and (15) N(14) N(16) O/(14) N(14) N(16) O), have a wide range that depends on their production and consumption processes...
March 2017: Mass Spectrometry Reviews
https://www.readbyqxmd.com/read/27862149/obituary-klaus-biemann
#20
Dominic M Desiderio, Paul Vouros
No abstract text is available yet for this article.
January 2017: Mass Spectrometry Reviews
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