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1,286 Newest Publications about the topic spectrometers
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Broadband Fourier transform rotational spectroscopy for structure determination: The water heptamer
20-05-2013 | Author(s): Cristóbal Pérez , Simon Lobsiger , Nathan A. Seifert , Daniel P. Zaleski , Berhane Temelso , George ..., Chemical Physics Letters, 2013
Publication date: 20 May 2013 Source:Chemical Physics Letters, Volume 571 Author(s): Cristóbal Pérez , Simon Lobsiger , Nathan A. Seifert , Daniel P. Zaleski , Berhane Temelso , George C. Shields , Zbigniew Kisiel , Brooks H. Pate Over the recent years chirped-pulse, ...
Isobaric Protein-Level Labeling Strategy for Serum Glycoprotein Quantification Analysis by Liquid Chromatography–Tandem Mass Spectrometry
17-05-2013 | Song Nie; Andy Lo; Jianhui Zhu; Jing Wu; Mack T. Ruffin; David M. Lubman, Analytical Chemistry, 2013
While peptide-level labeling using isobaric tag reagents has been widely applied for quantitative proteomics experiments, there are comparatively few reports of protein-level labeling. Intact protein labeling could be broadly applied to quantification experiments utilizing protein-level ...
Contrast enhancement of data measured with area detectors: a way to generalize the use of neutron diffraction for thin‐film studies
15-05-2013 | Alexandre M. Bataille, Vincent Auvray, Christophe Gatel, Arsen Gukasov, Journal of Applied Crystallography, 2013
A denoising method is reported for the treatment of neutron scattering data obtained with position‐sensitive detectors, which enhances the information obtained from weak and very weak Bragg peaks. The core element of the method is the application of a Laplacian of Gaussian filter calculated ...
In-situ Analysis of Corrosion Inhibitors using a Portable Mass Spectrometer with Paper Spray Ionization
15-05-2013 | Fred Jjunju; Anyin Li; Abraham Badu-Tawiah; Pu Wei; Linfan Li; Zheng Ouyang; Iman Roqan; R. Graham Cooks, Analyst, 2013
Paper spray (PS) ambient ionization is implemented using a portable mass spectrometer and applied to the detection of alkyl quaternary ammonium salts in a complex oil matrix. These salts are commonly used as active components in the formulation of corrosion inhibitors. They were identified in ...
Laboratory Degradation Rates of 11 Pyrethroids under Aerobic and Anaerobic Conditions
14-05-2013 | Brian N. Meyer; Chung Lam; Sean Moore; Russell L. Jones, Journal of Agricultural and Food Chemistry, 2013
Degradation of 11 pyrethroids was measured over approximately 100 days in three sediment/water systems under aerobic and anaerobic conditions at 25 °C in the dark. The three California sediments represented a range of textures and organic matter. Test compounds were bifenthrin, cypermethrin, ...
On the elemental composition of PM2.5 in central Cairo, Egypt
10-05-2013 | Johan Boman, Abdallah A. Shaltout, Asmaa M. Abozied, Salwa K. Hassan, X-Ray Spectrometry, 2013
Aerosol particles are among the criteria pollutants identified by many countries because of their effects on human health and the environment. Information about the elemental composition of the aerosol particles is useful for source apportionment and determining the possible negative ...
Photoelectron Spectroscopic and Theoretical Study of Aromatic–Bim Anionic Complexes (Aromatic = C6H5, C5H4N, C4H3O, and C4H4N; m = 1–3): A Comparative Study
10-05-2013 | Zhang Sun; Shutao Sun; Hongtao Liu; Zichao Tang; Zhen Gao, Journal of Physical Chemistry A, 2013
The reactions between Bi clusters generated by laser ablation and different aromatic molecules (C6H6, C5H5N, C4H4O, or C4H5N) seeded in argon carrier gas were studied by a reflectron time-of-flight mass spectrometer (RTOF-MS) with a photoelectron spectrometer. The photoelectron (PE) spectra ...
Energy-Resolved Collision-Induced Dissociation Studies of 1,10-Phenanthroline Complexes of the Late First-Row Divalent Transition Metal Cations: Determination of the Third Sequential Binding Energies
09-05-2013 | Holliness Nose; Yu Chen; M. T. Rodgers, Journal of Physical Chemistry A, 2013
The third sequential binding energies of the late first-row divalent transition metal cations to 1,10-phenanthroline (Phen) are determined by energy-resolved collision-induced dissociation (CID) techniques using a guided ion beam tandem mass spectrometer. Five late first-row transition metal ...
The use of a xylosylated plant glycoprotein as an internal standard accounting for N‐linked glycan cleavage and sample preparation variability
07-05-2013 | S. Hunter Walker, Amber D. Taylor, David C. Muddiman, Rapid Communications in Mass Spectrometry, 2013
RATIONALE Traditionally, free oligosaccharide internal standards are used to account for variability in glycan relative quantification experiments by mass spectrometry. However, a more suitable internal standard would be a glycoprotein, which could also control for enzymatic cleavage ...
Measurement of apo(a) kinetics in human subjects using a microfluidic device with tandem mass spectrometry
07-05-2013 | Haihong Zhou, Jose Castro‐Perez, Michael E. Lassman, Tiffany Thomas, Wenyu Li, Theresa McLaughlin, Xie Dan, Patricia ..., Rapid Communications in Mass Spectrometry, 2013
RATIONALE Apolipoprotein(a) [apo(a)] is the defining protein component of lipoprotein(a) [Lp(a)], an independent risk factor for cardiovascular disease. The regulation of Lp(a) levels in blood is poorly understood in part due to technical challenges in measuring Lp(a) kinetics. ...
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