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Rapid Communications in Mass Spectrometry: RCM

journal
https://www.readbyqxmd.com/read/30414208/perspectives-on-the-future-of-mass-spectrometry
#1
EDITORIAL
Paul Trevorrow, David P A Kilgour
No abstract text is available yet for this article.
November 9, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30414205/effects-of-pre-treatments-on-bulk-stable-isotope-ratios-in-fish-samples-a-cautionary-note-for-studies-comparisons
#2
Maëlle Connan, Grant Hall, Malcolm Smale
RATIONALE: Stable isotope analysis (SIA) has revolutionized ecological studies over the past thirty years. One of the major fields where SIA is applied in the marine environment, is related to the definition of ecosystem structure and function. With marine top predators such as sharks, SIA is a method of choice because tissue samples can be collected without the sacrifice of the animal. In elasmobranch research, the influence of molecules such as urea, trimethylamine oxide and lipids must be considered when using stable isotopes as ecological markers...
November 9, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30408251/cluster-secondary-ion-emission-of-silicon-an-influence-of-the-samples-dimensional-features
#3
LETTER
Alexander Tolstogouzov, Mikhail N Drozdov, Sergey F Belykh, Gennady P Gololobov, Aleksei E Ieshkin, Paul Mazarov, Dmitriy V Suvorov, Dejun Fu, Vasiliy Pelenovich, Xiaomei Zeng, Wenbin Zuo
Time-of-flight secondary ion mass spectrometry was used to study cluster emission of three kind of Si samples with different dimensional features - massive single-crystal wafer, pressed pellet made of 60 nm in diameter particles and holographical grating consisted of the columns of 200 nm in height and 160 nm in diameter. It was shown that under 25 keV Bi3 + ion-beam bombardment both nanosized samples exhibited more intense negative cluster secondary ion emission as compared with massive Si sample. The nanoscale effect of sputtering was found to be more pronounced for large Sin - clusters with n > 7 and for the pressed nanopowder pellet, in which individual particles are more isolated than in the columns formed holographic grating...
November 8, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30402977/collision-induced-mass-spectrometric-fragmentation-of-protonated-dimethoate-and-omethoate-generated-by-electrospray-ionization
#4
Harald John, Markus Siegert, Andreas Kranawetvogl, Horst Thiermann
RATIONALE: Dimethoate (DIM, S=P (OMe)2 -S-CH2 -C(O)-NH-CH3 ) is a dimethyl phosphorodithioate pesticide widely used in agri- and horticulture that undergoes biotransformation in vivo by desulfuration into its more toxic oxono-derivative omethoate (OM, O=P (OMe)2 -S-CH2 -C(O)-NH-CH3 ). OM inhibits acetylcholinesterase thus provoking cholinergic crisis in vivo, ultimately leading to death. Quantitative approaches for the determination of DIM and OM in environmental and toxicological samples make use of tandem mass spectrometry (MS2 )...
November 7, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30398689/surface-modification-of-chitosan-films-with-a-fibronectin-fragment-dna-aptamer-complex-to-enhance-osteoblastic-cell-activity-a-mass-spectrometry-approach-probing-evidence-on-protein-behavior
#5
M Saccani, L Parisi, C Bergonzi, A Bianchera, C Galli, G M Macaluso, R Bettini, L Elviri
No abstract text is available yet for this article.
November 6, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30397965/perspective
#6
Shawna Hengel
No abstract text is available yet for this article.
November 5, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30395697/perspective
#7
Tara Pukala
No abstract text is available yet for this article.
November 5, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30394607/investigation-of-amodiaquine-localization-in-liver-lobules-using-maldi-imaging-mass-spectrometry
#8
Kerri J Grove, Shaila Hoque, Patrick J Rudewicz
RATIONALE: High mass and high spatial resolution MALDI imaging mass spectrometry (IMS) opens new possibilities for the detailed study of the hepatic metabolism of drugs. The spatial and temporal distribution of drug metabolites within liver lobules, anatomical subunits of the liver, may aid in the understanding of the formation of reactive metabolites that bind to liver proteins and cause drug-induced liver injury. METHODS: Frozen livers obtained from rats dosed orally with amodiaquine (100 mg/kg) were sectioned at 10 μm and coated with a MALDI matrix...
November 5, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30394606/high-throughput-paper-spray-mass-spectrometry-via-induced-voltage
#9
Haijing Zhu, Guangming Huang
RATIONALE: Paper spray (PS) has been developed as a method of choice for point-of-care analysis in many real cases, where its applications can be further expanded with delicate high-throughput design. To achieve this goal, we developed a new PS regime, with the assembly of an induced high voltage into the ion source. Compared to regular DC high voltage, the newly-developed setup is capable of high-throughput, simple configuration and rapid switch between individual papers without complicated electric/mechanic design...
November 5, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30394595/oxidative-treatments-for-atenolol-removal-in-water-elucidation-by-mass-spectrometry-and-toxicity-evaluation-of-degradation-products
#10
Amanda V Quaresma, Bianca A Sousa, Karina T S Silva, Silvana Q Silva, Alceni A Werle, Robson J C F Afonso
RATIONALE: The presence of pharmaceuticals in water is a worldwide concern due to potential damage to human and environmental health. For example, compounds such as the β-blocker atenolol (ATE), widely used for the treatment of cardiac disease, are detected in drinking water since conventional water treatment plants are not designed to remove them. Thus, the evaluation of ATE removal at different water oxidative treatment processes, identification of its degradation products and evaluation of their toxicity is necessary...
November 5, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30394592/development-of-a-mass-spectrometry-based-detection-method-for-the-mitochondrion-derived-peptide-mots-c-in-plasma-samples-for-doping-control-purposes
#11
A Knoop, A Thomas, M Thevis
RATIONALE: The mitochondrial open reading frame of 12S rRNA type-c (MOTS-c) peptide was recently discovered and described to control metabolic homeostasis through AMPK activation along with AICAR accumulation. Consequently, it appears advisable to monitor the potential use of synthetic MOTS-c in sports, and a detection method suitable for sports drug testing purposes has been required. METHODS: For the detection of MOTS-c in doping control plasma samples, a test method employing liquid chromatography and mass spectrometry (LC/MS) was developed...
November 5, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30378201/perspective
#12
Adam Trevitt
No abstract text is available yet for this article.
October 31, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30378200/perspective
#13
Sarah Trimpin
No abstract text is available yet for this article.
October 31, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30378193/perspective
#14
Filip Cuyckens
No abstract text is available yet for this article.
October 31, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30378190/perspective
#15
Scott Grayson
No abstract text is available yet for this article.
October 31, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30378202/sensitive-detection-of-topiramate-degradation-products-by-hplc-esi-ms-using-ion-pairing-reagents-and-polarity-switching
#16
Eduardo Costa Pinto, Chengdong Xu, Lucio Mendes Cabral, Daniel W Armstrong, Valéria Pereira de Sousa
RATIONALE: The chromatographic analysis of topiramate and its degradation products is challenging due to the absence of chromophoric moieties in their structures, the wide polarity range of the compounds and their ionization differences. This work proposes two new mass spectrometry approaches for evaluating these analytes. METHODS: Based on the calculated experimental LOD, a highly sensitive paired-ion electrospray ionization mass spectrometry HPLC method was developed for the determination of topiramate inorganic degradation products...
October 30, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30378199/perspective
#17
Zhongping Yao
No abstract text is available yet for this article.
October 30, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30378197/the-relationship-between-the-phosphate-and-structural-carbonate-fractionation-of-fallow-deer-bioapatite-in-tooth-enamel
#18
Holly Miller, Carolyn Chenery, Angela L Lamb, Hilary Sloane, Ruth F Carden, Levent Atici, Naomi Sykes
RATIONALE: The species-specific relationship between phosphate (δ18 OP values) and structural carbonate (δ18 OC values) oxygen isotope ratios has been established for several modern and fossil animal species but until now it has not been investigated in European fallow deer (Dama dama dama). This study describes the relationship between phosphate and structural carbonate bioapatite in tooth enamel of extant fallow deer, which will help us further understand the species' unique environmental and cultural history...
October 30, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30378194/h-2-clumped-isotope-measurements-at-natural-isotopic-abundances
#19
Maria Elena Popa, Dipayan Paul, Christof Janssen, Thomas Röckmann
RATIONALE: H2 is an important gas for atmospheric chemistry, and an indirect greenhouse gas due to its reaction with OH. The isotopic composition of H2 (δD values) has been used to investigate its atmospheric budget; here we add a new observable, the clumped isotopic signature ΔDD, to the tools that can be used to study the global cycle of H2 . METHODS: A method for determining ΔDD in H2 was developed using the high-resolution IRMS MAT-253 Ultra isotope ratio mass spectrometer (Thermo Fisher)...
October 30, 2018: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/30376695/perspective
#20
Anneli Kruve
No abstract text is available yet for this article.
October 30, 2018: Rapid Communications in Mass Spectrometry: RCM
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