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نمایش تعداد 1-10 از 14
Synthesis, characterization of silica gel phases chemically immobilized 2-aminothiophenole and use of it for preconcentration and determination of trace amount of cadmium and batch studies by flame atomic absorption spectrometry
Synthesis, characterization of silica gel phases chemically immobilized 2-aminothiophenole and use of it for preconcentration and determination of trace amount of cadmium and batch studies by flame atomic absorption spectrometry...
On-line preconcentration of ultra-trace thallium(I) in water samples with titanium dioxide nanoparticles and determination by graphite furnace atomic absorption spectrometry
A new method has been developed for the determination of Tl(I) based on simultaneous
sorption and preconcentration with a microcolumn packed with TiO2 nanoparticle with a high specific
surface area prepared by Sonochemical synthesis...
Ultra-Trace Determination of Co (ІІ) in Real Samples Using Ion Pair-Based Dispersive Liquid-Liquid Microextraction Followed by Electrothermal Atomic Absorption Spectrometry
Ion pair-based dispersive liquid-liquid
microextraction technique was used for preconcentration and
determination of ultra-trace levels of Co (ІІ) followed by electrothermal
atomic absorption spectrometry (ETAAS). Thiocyanate...
Developing a new sensitive solid-phase microextraction fiber based on carbon nanotubes for preconcentration of morphine
The ability of extraction and preconcentration of small amounts of substances from biological samples is important in forensic
medicine. In the present study, we produced a new solid-phase microextraction fiber based on carbon nanotube (CNTs...
Preconcentration of morphine in urine sample using a green and solvent-free microextraction method
The ability of extraction and preconcentration of small amounts of substances from biological samples is very important in medical toxicology. On the other hand, minimal use of organic solvents is an important issue to prevent...
Preconcentration of trace amount of cadmium using silica nanoparticles coated with sodium dodecyl sulfate and its determination by flame atomic absorption spectrometry
A new method for solid-phase extraction and preconcentration of trace amounts of Cd(II) from environmental samples was developed by using sodium dodecyl sulphate-coated silica nanoparticles (SDS-coated SiO2 NPs) as a new sorbent [1]. The procedure...
Dispersive solid phase extraction and preconcentration of Reactive blue194 using magnetic carbon nanotube and utilization of smart Mobile Phone for colorimetric analysis
In this work the applicability of carbon magnetic nanotubes as a magnetic solid phase sorbent for the extraction/preconcentration of Reactive Reactive Blue 194 (RB194) were studied. Carbon magnetic nanotubes were synthesized by the solvothermal...
Application of titanium dioxide nanoparticles for preconcentration and determination of As(V)in water samples by graphite furnace atomic absorption spectrometry
Titanium dioxide (TiO2) nanoparticles were prepared by Sonochemical synthesis method at low intensity and characterized using X-ray diffraction (XRD) and Transmission Electron Microscope (TEM). The preconcentration capability of TiO2 nanoparticles...
DETERMINATION OF TRACE AMOUNTS OF ZINC BY FLAME ATOMIC ABSORPTION SPECTROMETRY AFTER SEPARATION AND PRECONCENTRATION ONTO MODIFIED NATURAL ANALCIME ZEOLITE LOADED 2,3,5,6-TETRA(2-PYRIDYL)PYRAZINE
In the present work, we have developed a simple, selective, sensitive and cheap method for
determination of zinc ions. In this method zinc ions were adsorbed onto modified natural
analcime zeolite loaded TPPZ ...