ResourceSpectroscopy
Characterization of iron nanoparticles in hydrocarbon matrices by single particle (sp)ICP-MS
1 Nov 2022In this application note, the spICP-MS acquisition mode of the Agilent 7900 ICP-MS was used with transmission electron microscopy to characterize synthesized gold and iron nanoparticle reference nanomaterials from nanoComposix.
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Agilent 7900 ICP-MS
Agilent TechnologiesThe Agilent 7900 ICP-MS is a flexible single quadrupole ICP mass spectrometer that provides the industry’s best matrix tolerance, most effective helium collision mode, lowest detection limits, and widest dynamic range. As a result, you can be confident you are reporting accurate data every time, even at trace levels, whatever your sample types.
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Atomic Absorption / Emission SpectroscopyAtomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES) — also called optical emission spectroscopy (OES) — are used to detect the elemental constituents in samples. Both techniques involve the atomization of a sample. Atomic absorption spectrometers may use a flame or furnace to create an atomic vapor of the sample before irradiation with spectral light. Optical emission spectrometers may use a flame, inductively coupled plasma (ICP), microwave plasma (MP) or spark arcs to atomize and excite the sample. At higher excitation energies, electrons can be emitted instead of photons, which can be useful for samples that can’t be atomized and for surface analysis. Explore electron spectroscopy equipment such as Auger spectrometers and photoelectron spectrometers for surface elemental analysis of samples. Find the best atomic absorption, photoelectron and optical emission spectrometers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.NanotechnologyNanotechnology, or nanotech, is an engineering technique using molecular scale functional systems. Applications of nanotechnology include medicine and medical devices, electronics, air and water purification, food science and energy production.Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Electron MicroscopyElectron microscopes (EM) are used to create high-resolution images of samples at the nanoscale by means of an accelerated beam of electrons as a source of illumination. Types of electron microscope include scanning electron microscopes (SEM), transmission electron microscopes (TEM), scanning transmission electron microscopes (STEM) and cryo-electron microscopes. Focused ion beam (FIB) microscopes are useful for modifying or milling a sample surface with nanometer precision, as well as imaging. Find the best electron microscopes in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.ICP-MSInductively Coupled Plasma Mass Spectrometry (ICP-MS) is a powerful analytical technique used to determine the concentrations of elements and their isotopes in a variety of samples, including water, soil, and biological tissues. It involves ionizing elements in the samples with extremely high-temperature Argon (Ar) plasma and then using a mass spectrometer to measure the number of ions based on their mass-to-charge ratio (m/z). Explore ICP-MS systems in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.NanomaterialsNanomaterials such as carbon nanotubes, fullerenes and nanoparticles are a group of materials that measure between 1-1000nm for a single unit. Analysis techniques include AFM, electron microscopy and super resolution microscopy.NanoparticlesNanoparticles are between 1-100nm in size. Nanoparticles can be used for a wide variety of applications including biomedical, catalysis and electronics.