| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Capelo, Jose Luis
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2019Highly accessible aqueous synthesis of well-dispersed dendrimer type platinum nanoparticles and their catalytic applicationscitations
- 2019Exploring the control in antibacterial activity of silver triangular nanoplates by surface coating modulationcitations
- 2017Synthesis and Characterization of PtTe2 Multi-Crystallite Nanoparticles using Organotellurium Nanocompositescitations
- 2017A seleno-pyrene selective probe for Hg2+ detection in either aqueous or aprotic systemscitations
- 2017Evaluation of the binding of four anti-tumor Casiopeínas® to human serum albumincitations
- 2016The interaction of Hg2+ and trivalent ions with two new fluorescein bio-inspired dual colorimetric/fluorimetric probescitations
- 2015Novel nanocomposites based on a strawberry-like gold- coated magnetite (Fe@Au) for protein separation in multiple myeloma serum samplescitations
- 2014A new 3,5-bisporphyrinylpyridine derivative as a fluorescent ratiometric probe for zinc ionscitations
- 2014Bioinspired Functionalized Nanoparticles as Tools for Detection, Quantification and Targeting of Biomolecules
- 2012Novel emissive podands based on 8-OH-quinoline: Synthesis, fluorescence materials, DFT and complexation studiescitations
- 2011Novel small stable gold nanoparticles bearing fluorescent cysteine-coumarin probes as new metal-modulated chemosensorscitations
- 2010Hg2+ detection by new anthracene pendant-arm derivatives of mixed N/S- and N/S/O-donor macrocycles: Fluorescence, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and density functional theory studiescitations
- 2008Ultrasonic energy as a tool in the sample treatment for polymer characterization through matrix-assisted laser desorption ionization time-of-flight mass spectrometrycitations
Places of action
| Organizations | Location | People |
|---|
article
Ultrasonic energy as a tool in the sample treatment for polymer characterization through matrix-assisted laser desorption ionization time-of-flight mass spectrometry
Abstract
Different ultrasonic devices including Ultrasonic bath with dual frequency, sonoreactor and ultrasonic probe, were tested for their viability in the sample treatment for polymer characterization by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry analysis. The effect of sonication frequency (35 kHz, 40 kHz and 130 kHz), sonication amplitude, and sonication time on the polymer's number-average molecular weight (M(n)) and weight-average molecular weight (M(w)) were investigated. The effect of those variables in the molecular mass distribution of three polymer standards, poly(styrene) 2000 Da and 10,000 Da and poly(ethylene glycol) 1000 Da, was evaluated. In addition, the influence of ultrasonic energy oil the sample treatment as a function of the matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI) matrix Was also Studied through two common standard matrices, dithranol and 2,5-dihydroxybenzoic acid. The results obtained show that the ultrasonic bath at 35 kHz is the best option for the purpose of fast sample treatment for polymer characterization. The M, and M. Values obtained for this ultrasonic device and for the three polymers tested using dithranol as MALDI matrix, were not statistically different from the ones acquired with vortex mixing and also were in Concordance with the Values recommended by the polymer manufacturers. (C) 2008 Elsevier B.V. All rights reserved.