Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Nereida Carrión"'
Publikováno v:
Avances en Química, Vol 6, Iss 3, Pp 61-68 (2011)
The effect of hydrogen from hydrides generation in a radially-viewed inductively coupled plasma optical emission spectroscopy with a dual hydride-generator system on plasma excitation characteristic was studied. The effects of the acid concentration
Externí odkaz:
https://doaj.org/article/216d943f80d34f2381044dfe2df1a582
Publikováno v:
Avances en Química, Vol 3, Iss 2, Pp 59-67 (2008)
This paper describes a novel approach for analysis of mercury speciation in fish using gas chromatography coupled with microwave-induced plasma optical emission spectrometry (GC-MIP-OES) in surfatron resonant cavity. Sample treatment was based on qua
Externí odkaz:
https://doaj.org/article/8e4f70f9907f48dca196d4c21f50294b
Autor:
Miguel Murillo, Nereida Carrión, Jorge Colmenares, Juan Romero, Gladys Alvarado, Manuel Ríos, Freddy Angulo
Publikováno v:
Química Nova, Vol 31, Iss 6, Pp 1315-1318 (2008)
An evaluation of the performance of a continuous flow hydride generator-nebulizer for flame atomic absorption spectrometry was carried out. Optimization of nebulizer gas flow rate, sample acid concentration, sample and tetrahydroborate uptake rates a
Externí odkaz:
https://doaj.org/article/660a803eb4374c36997cf6f06b4aeb09
Publikováno v:
Talanta. 61:621-632
The simultaneous multielement determination of Pb, Sn, Ni and Cu in aluminium alloys by electrothermal atomic absorption spectrometry (ETAAS) was performed by a quick method using slurry sampling. The metallic colloidal slurries were obtained by an e
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 58:1375-1389
A study was conducted to evaluate the performance of a new direct hydride generation nebulizer system for determination of hydride forming elements by inductively coupled plasma optical emission spectroscopy. This system was designed and optimized to
Publikováno v:
Talanta. 54:389-395
A system using a microwave induced plasma, as an emission source was optimized for total mercury determinations. The system contains a flow injection section in which mercury is reduced and deposited on a gold/platinum collector, and carried to the e
Autor:
Marta Mediavilla, Frank Fajardo, Luis Melo, Nereida Carrión, Joaquín L Brito, Ángela B. Sifontes, Marianis Urbina
Publikováno v:
Journal of Materials Science. 44:4507-4509
Single phase c-Al2O3 ceramic foams with high surface area (179 m/g) and porosity (67%) were prepared by the polyurethane sponge replica method from slurries containing c-Al2O3. Ceramic foams are highly porous brittle materials with large voids (cells
Publikováno v:
Investigacion clinica. 53(4)
In this paper we evaluated a new micro-flow injector for the determination of the concentrations of Cu, Mg and Zn in mononuclear blood cells. This device analyzed sample volumes in the order of microliters by flame atomic absorption spectrometry; it
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 51:1121-1132
Atomization of copper from different atomization surfaces and in the presence of chemical modifiers has been investigated. The atomization surfaces are molybdenum and tungsten carbide-coated platforms obtained by physical vapour deposition and pyroly
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 50:1581-1594
Atomization of cadmium on tungsten carbide, molybdenum carbide and metallic palladium coated platforms and on pyrolytic graphite coated platforms with and without tungsten, molybdenum and palladium modifiers has been studied. A physical vapour deposi