[PDF] Top 20 A time-of-flight mass spectrometer for high energy (0.5 - 1.0 keV) electron ionization of gases.
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A time-of-flight mass spectrometer for high energy (0.5 - 1.0 keV) electron ionization of gases.
... obtendo-se desta forma, a cada pulso, uma base temporal para a medida dos tempos de vôo, com o emprego de um Conversor Tempo-Amplitude (Time to Amplitude Converter - TAC). Em outras palavras, a geração do pulso de ... See full document
5
Gram-stain plus MALDI-TOF MS (Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry) for a rapid diagnosis of urinary tract infection.
... ml high-performance liquid chromatography (HPLC)-quality water (Sigma-Aldrich, ...l of formic acid (70% vol/vol) and left to dry. Then, 1 m l of matrix solution (a-cyano-4- hydroxy-cinnamic acid ... See full document
7
J. Braz. Chem. Soc. vol.27 número3
... The high resolution mass spectrometry (HRMS) using atmospheric pressure chemical ionization (HRAPCIMS) was performed on a liquid chromatography-mass spectrometry ion trap and ... See full document
5
Airborne observations of formic acid using a chemical ionization mass spectrometer
... the flight was measured from the London ...a high volume of industrial, domestic and transport activity, a known ma- jor source of carboxylic acid emissions (Chebbi and Carlier, ...The ... See full document
11
Elemental analysis of aerosol organic nitrates with electron ionization high-resolution mass spectrometry
... factor of ≈10 7 . The resulting focused beam of particles with aerodynamic diame- ters ≈30–1000 nm is impacted on a heated surface (≈600 ◦ C) where the non-refractory component of the aerosol is ... See full document
10
Mould routine identification in the clinical laboratory by matrix-assisted laser desorption ionization time-of-flight mass spectrometry.
... a high throughput for most ...that of conventional methods in the routine clinical laboratory setting ...types of matrix, and instruments were also ...because mass spectra are influenced by ... See full document
9
A switchable reagent ion high resolution time-of-flight chemical ionization mass spectrometer for real-time measurement of gas phase oxidized species: characterization from the 2013 Southern Oxidant and Aerosol Study
... of quantified species will aid the current understanding of atmospheric oxidation. Alter- natively, placing these CIMS measurements into a frame work for examining bulk gas phase trends needs to be explored ... See full document
46
Aqueous-phase photooxidation of levoglucosan – a mechanistic study using aerosol time-of-flight chemical ionization mass spectrometry (Aerosol ToF-CIMS)
... first time referred this sys- tem as an Aerosol ...strength of Aerosol CIMS lies in the fast time re- sponse, enabling in situ monitoring of aqueous-phase chem- ...study, high ... See full document
12
J. Braz. Chem. Soc. vol.23 número1
... determination of the dissociation pathways of these main antimalarial drugs should benefit their monitoring by MS techniques in pharmaceutical products and biological fluids and the proper identification ... See full document
8
A new technique for the direct detection of HO<sub>2</sub> radicals using bromide chemical ionization mass spectrometry (Br-CIMS): initial characterization
... series of ion optics and speci- ated by the time-of-flight ...dance of bromine is such that the adduct is detected at two nominal mass-to-charge ratios, m/z 112 and m/z 114 cor- ... See full document
11
Relating hygroscopicity and composition of organic aerosol particulate matter
... concentrations of ammonium (NH + 4 ), sulfate (SO 2− 4 ), nitrate (NO − 3 ), and OA dur- ing these two field campaigns were obtained from the AMS ...pairing of the in- organic ions, which is required for ... See full document
33
Mat. Res. vol.20 número5
... prediction of some physical and electro- optic properties of Circumacenes family with high precision is possible through TIM method and RRR ...signiicance of this method is magniied in the ... See full document
6
Evaluation of MALDI-TOF MS in the microbiology laboratory
... capable of analyzing specimens including bacterial, mycobacterial, and fungal samples in addition to samples recovered directly from positive blood culture ... See full document
7
Selection Of High Performing Geometry In Flexure Bearings For Linear Compressor Applications Using Fea.
... amount of friction in a ...selection of a bestgeometry among the selected geometries for flexure bearing used in linear ...stress.Selection of geometry is one of the most important steps in ... See full document
4
Model of knowledge representation about materials in the form of a relational database for CAPCAST system
... dependency of attributes is done to omit the un- necessary attributes, the step which can be of crucial importance in optimising the decision-making ...number of attributes means less of a ... See full document
6
A chemical ionization mass spectrometer for continuous underway shipboard analysis of dimethylsulfide in near-surface seawater
... quadrupole mass filter, detector, and detector electronics were provided by a residual gas analyzer (RGA200, Stanford Research Systems, Sunnyvale, ...cations of this ...an electron impact ... See full document
26
Heterogeneous oxidation of saturated organic aerosols by hydroxyl radicals: Uptake kinetics and condensed-phase products
... m/z 44 in the ToF-AMS data suggests that carboxylic acids were also being formed, possibly through secondary reactions, e.g., OH-initiated oxidation of aldehydes. It is unlikely that OH would attack the BES ... See full document
40
Einstein (São Paulo) vol.10 número1
... technical time and at least 6 to 8 hours of work by a dedicated ...use of proteomic studies for rapid diagnosis – as fast as 5 to 15 minutes – of etiology of infections, and it is ... See full document
2
Effect of Annealing Time for Quenching CuAl7Fe5Ni5W2Si2 Bronze on the Microstructure and Mechanical Properties
... scale of temperature and time ...changes of the sample temperature, respectively, during the annealing (stage T2 - isothermal annealing), hyperquenching and quenching bronze (stage T3 - cooling in ... See full document
18
Advances in quantitative hepcidin measurements by time-of-flight mass spectrometry.
... consisted of subjects that were randomly selected from our sample collection described previously [10], and additional volunteers with normal iron ...Participants of our previous study included 25 ... See full document
7
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