Journal: Analytical Chemistry
Article Title: Low-Dose Elemental Mapping of Light Atoms in Liquid-phase Materials Using Cryo-EELS
doi: 10.1021/acs.analchem.5c02121
Figure Lengend Snippet: EELS spectra and cryo-EL images of hydroxyapatite (HAp). (a) Zero-loss image of HAp nanoparticles dispersed in vitrified ice. (b) Selected area of (a) for EELS spectra measurement. (c)EELS spectrum of the P-L 2,3 edge from (b). A box around 136 eV corresponds to the P-L 2,3 core-loss peak and is shown in a zoomed-in view in the inset. (d) EELS spectrum of the Ca-L 2,3 edge. (e) Zero-loss image of nanoparticles in vitrified ice. (f) Cryo-EL image of the P-L 2,3 edge. (g) Cryo-EL image of the Ca-L 2,3 edge. Both P-L 2,3 and Ca-L 2,3 core-loss signals are colored in white. White circles and triangles in (e) indicate the carbon support film and HAp nanoparticles, respectively.
Article Snippet: Hydroxyapatite (HAp) was purchased from Merck and dispersed in water from its paste form to prepare a 2.5 mg/mL suspension.
Techniques: