Results 31 to 40 of about 320,261 (288)

Residue analysis and security judgement of parathion-methyl and parathion residues in tea

open access: yesShipin yu jixie, 2023
Objective: To detect the level of parathion-methyl and parathion residues in different types of tea by high pressure liquid chromatography coupled with matrix solid phase dispersion. Methods: Before determined by high pressure liquid chromatography (HPLC)
CHEN Yantong, LI Jie, LI Huan, TAN Jun
doaj   +1 more source

Evaluation of Antibacterial Enrofloxacin in Eggs by Matrix Solid Phase Dispersion-Flow Injection Chemiluminescence

open access: yesJournal of Chemistry, 2014
The study based on the chemiluminescence (CL) reaction of potassium ferricyanide and luminol in sodium hydroxide medium, enrofloxacin (ENRO) could dramatically enhance CL intensities and incorporated with matrix solid-phase dispersion (MSPD) technique ...
Xiaocui Duan   +3 more
doaj   +1 more source

Determination of fluoroquinolones, sulfonamides, and tetracyclines multiresidues simultaneously in porcine tissue by MSPD and HPLC–DAD

open access: yesJournal of Pharmaceutical Analysis, 2012
An efficient method is provided to detect simultaneously some important veterinary drugs from different classes in highly complex animal tissue matrix.
Hu Yu, Hui Mu, Ying-Mei Hu
doaj   +1 more source

Dispersion of Ni nanoparticles into Ti(C,N) colloidal filaments for 3D printing by FFF

open access: yesOpen Ceramics, 2021
Fabrication of dense inorganic parts using FFF requires the processing of a thermoplastic-based filament with a high content of inorganic particles, highly dispersed and an elevated final density.
A. Eguiluz   +4 more
doaj   +1 more source

Fabrication of metal matrix composites under intensive shearing [PDF]

open access: yes, 2008
Current processing methods for metal matrix composites (MMC) often produces agglomerated reinforced particles in the ductile matrix and also form unwanted brittle secondary phases due to chemical reaction between matrix and the reinforcement. As a result
Barekar, NS   +4 more
core   +1 more source

Effect of solid thermal conductivity and particle-particle contact on effective thermodiffusion coefficient in porous media [PDF]

open access: yes, 2011
Transient mass transfer associated to a thermal gradient through a saturated porous medium is studied experimentally and theoretically to determine the effect of solid thermal conductivity and particle-particle contact on thermodiffusion processes.
Davarzani, Hossein   +2 more
core   +3 more sources

Adaptation of Sonication-Assisted Matrix Solid Phase Dispersion of Tissues for the Subsequent Extraction of Polycyclic Aromatic Hydrocarbons from Gulf Menhaden (Brevoortia patronus)

open access: yesBiochemistry Research International, 2014
A new adaptation based on matrix solid phase dispersion of tissue for the subsequent isolation of polycyclic aromatic hydrocarbons was developed and used for extractions of Gulf menhaden caught during the summer of 2011.
Gregory M. Olson   +2 more
doaj   +1 more source

EVALUATION OF A BUFFERED SOLID PHASE DISPERSION PROCEDURE ADAPTED FOR PESTICIDE ANALYSES IN THE SOIL MATRIX

open access: yesQuímica Nova, 2015
An evaluation of the pesticides extracted from the soil matrix was conducted using a citrate-buffered solid phase dispersion sample preparation method (QuEChERS).
Ana María Domínguez   +5 more
doaj   +1 more source

Effective medium theory of elastic waves in random networks of rods

open access: yes, 2012
We formulate an effective medium (mean field) theory of a material consisting of randomly distributed nodes connected by straight slender rods, hinged at the nodes.
H. Lu   +7 more
core   +1 more source

Room temperature and high-temperature properties of extruded Ti-4Fe-3W/2TiC composites in α+β and β phases

open access: yesMaterials & Design, 2022
Considering the high strength of titanium matrix composites (TMCs) at room and elevated temperatures, the aim of this study was to develop novel TMC Ti-4Fe-3W/2TiC (wt%) utilizing powder metallurgy and subsequent extrusion at different temperatures: the ...
Abdollah Bahador   +8 more
doaj   +1 more source

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