نتایج جستجو برای: magnetic solid phase extraction
تعداد نتایج: 1205402 فیلتر نتایج به سال:
this paper describes the development of a procedure for pb(ii) ions removal from various water samples after magnetic solid phase extraction (mnps) by magnetite nanoparticles (fe3o4 nps) modified with sodium dodecyl sulfate (sds) and pyrrolidine-1-dithiocarboxylic acid ammonium (pdtcaa). the synthesis of fe3o4 nps was certified by characterization techniques including field emission scanning el...
Liquid-liquid extraction or solid-phase extraction followed by gas chromatography (GC) or high-performance liquid chromatography are traditional herbicide residue determination methods for environmental samples. Solid-phase microextraction (SPME) is a solventless, fast, and sensitive alternative herbicide residue extraction method that can be applied to numerous environmental matrices. The obje...
In this paper, Bi1.64-xPb0.36CdxSr2Ca2Cu3Oy (BPCSCCO) superconductor with x = 0.0, 0.02, 0.04 and 0.06 is made by the solid state reaction method. The magnetic susceptibility measurements were performed using AC susceptometer. The microstructure and morphology of the samples have been studied by X-ray diffraction, scanning electron microscope and energy dispersive X-ray. The results show that t...
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