5. Sample preparation The sample for X-ray fluorescence spectroscopy can be either solid or aqueous. No matter what sample, the sample preparation situation has great influence on the measurement error. The errors caused by the partial segregation of the metal samples should be paid attention to....
Vibrational spectroscopy involves the investigation of a materials system’s response to the excitation of vibrational modes by an external probe, by decomposing the response into its normal vibrations and their overtones. From: Encyclopedia of Nanomaterials (First Edition), 2023 ...
IR spectroscopy mainly helps to find out the type of the functional group(s) which make up the sample. The frequency of the absorbed infrared radiation is unique or characteristic of every functional group. In this chapter, the basic principle, working, and components of IR spectroscopy have ...
Near-infrared spectroscopy is based on the same principle as a pulse oximeter and allows continuous non-invasive monitoring of Hb oxygenation and deoxygenation and thus tissue saturation "StO2". These investigators provided an overview of NIRS technology principles and discussed its current clinical use...
Fourier-transform Infrared (FT-IR) spectroscopy is a vibrational, non-destructive method which allows the simple and reproducible analysis of the tissue with only small amounts of material. It is based on the change in thedipole momentin a molecule, working on the principle of vibratin...
Near-infrared spectroscopy (also referred to as near-IR spectroscopy or NIRS) is a spectroscopic technique that focuses its attention on the near-infrared region of the electromagnetic spectrum - 780 to 2500 nm. Video Credit: Metrohm Middle East FZC ...
carbon film on a copper grid. The cross-section of a BaF2/AZO NC film/ITO film half-device was prepared using a focused ion beam (FIB; FEI STRATA 400 S). The cross-sectional morphologies were then studied using TEM (FEI Talos F200s) and energy-dispersive spectroscopy (EDS; super-X)...
According to Hvozdara et al. (Summary of the Conference Report of the International Conference on Advanced Vibrational Spectroscopy ICAVS, Turku, Finland, August 2001), using radiation in the middle infrared region, sensors employing the principle of attenuated total reflection can be employed, utiliz...
(Raspberry Pi 3, Raspberry Pi Foundation) using home-built Python codes. The reflection spectra of the individual pixels under different voltage biases were measured using a Fourier transform infrared spectroscopy microscope (FTIR, Bruker). The plasmonic resonance modes were visualized using a ...
,“Probing starbursts with ISO mid-IR spectroscopy,” in Extragalactic Astronomy in the Infrared, MPI fur extraterrestrische Physik. The continuum emission in this spectrum is due to thermal emission from hot dust that has been heated by absorbing starlight. The sharp emission lines are due to ...