Results 51 to 60 of about 288,567 (335)

Integração de técnicas analíticas e proposta de experimentos para cursos de graduação em análise instrumental: uso de espectrômetro de absorção atômica para medidas de absorção molecular Integration of analytical techniques and undergraduate laboratory in instrumental analysis: use of an atomic absorption spectrometer for molecular absorption measurements

Química Nova, 2006
Simple experiments are proposed for measuring molecular absorption of chromate and dichromate ions using an atomic absorption spectrometer. The experiments can help undergraduate students in instrumental analysis courses understand important aspects ...
Marcos S. Gomes, Lilian C. Trevizan, Joaquim A. Nóbrega, Sandro T. Gouveia, Fábio R. P. Rocha   +4 more
doaj   +1 more source

Advanced simulation code for alpha spectrometry

, 2005
A Monte Carlo code, known as AASI, is developed for simulating energy spectra in alpha spectrometry. The code documented here is a comprehensive package where all the major processes affecting the spectrum are included.
Adesida, Agostinelli, Amsel, Biersack, Bortels, Brusa, Ferrero, Gueorguiev, Kijima, L’Hoir, Molière, Nigam, Pickering, Pöllänen, R. Pöllänen, Reimer, Roldán, Siiskonen, Steinbauer, T. Siiskonen   +19 more
core   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Solid sampling determination of ZnO nanoparticles in eyeshadows by graphite furnace atomic absorption spectrometry [PDF]

, 2019
The application of nanoparticles (NPs) in science and technology is a fast growing field. Therefore, reliable and straightforward analytical methods are required for their fast determination in different types of samples.
Cano-Pavón, José Manuel, García-de-Torres, Amparo, García-Mesa, Juan Carlos, López-Guerrero, María del Mar, Montoro Leal, P., Siles-Cordero, Maria Teresa, Vereda-Alonso, Elisa Isabel   +6 more
core  

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

Local order measurement in SnGe alloys and monolayer Sn films on Si with reflection electron energy loss spectrometry [PDF]

, 1995
Measurements of local order are demonstrated in Sn-containing alloys and epitaxial monolayer thickness films by analysis of extended-edge energy loss fine structure (EXELFS) data obtained by reflection electron energy loss spectrometry (REELS).
Ahn, Channing C., Atwater, Harry A., He, Gang, Nikzad, Shouleh, Wong, Selmer S.   +4 more
core   +1 more source

Continuum source atomic absorption spectrometry : past, present and future aspects – a critical review

, 2014
This review article covers 1½ centuries of history of continuum source atomic absorption spectrometry (CS AAS), starting with the early experiments of Kirchhoff and Bunsen in the 1860s.
B. Welz, M. Vale, É. R. Pereira, I. N. Castilho, M. Dessuy   +4 more
semanticscholar   +1 more source

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

Advanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti, Marta Miola, Liliana Liverani, Paolo Sartori, Enrica Verné, Aldo R. Boccaccini   +5 more
wiley   +1 more source

Off-resonance energy absorption in a linear Paul trap due to mass selective resonant quenching

, 2013
Linear Paul r.f. ion traps (LPT) are used in many experimental studies such as mass spectrometry, atom-ion collisions and ion-molecule reactions. Mass selective resonant quenching (MSRQ) is implemented in LPT either to identify a charged particle's mass ...
Goodman, D. S., Narducci, F. A., Sivarajah, I., Smith, W. W., Wells, J. E.   +4 more
core   +1 more source

Unlocking the Power of Quercetin‐Encapsulated Mesoporous Bioactive Glass Nanoparticles: A Multifunctional Approach to Bone Regeneration

Advanced Engineering Materials, EarlyView.
Mesoporous bioactive glass nanoparticles (MBGNs) are investigated for bone regeneration given their remarkable structural and functional properties. MBGNs are functionalized with Mn and Cu and incorporated with quercetin, a natural flavonoid exhibiting antioxidant, anti‐inflammatory, and antimicrobial properties.
Giovanni Lo Bello, Qaisar Nawaz, Pier Francesco Ferrari, Laura Pastorino, Roberto Raiteri, Aldo R. Boccaccini   +5 more
wiley   +1 more source