Use of Electron Microscope in Chemical Microscopy

Metallo-Organic Precipitates in Inorganic Analysis

“…The crystals occur randomly with no uniform tendency toward a state of aggregation. The size increases and then decreases with decreasing concentration of nickel solution; this observation is in agreement with that for silver chromate (4) and silver thiocyanate (8), and appears to be a general situation. Crystals were formed when the precipitating agent was added to a 10 ~7 M nickel solution, corresponding to 1 part of nickel in 200,000,000 by weight.…”

Recent Advances in Nuclear Forensic Chemistry

“…Faced by the diffraction limit of visible light, which has only been conditionally overcome by groundbreaking chemistry within the last 25 years, 113,114 it is doubtful that materials chemistry could have advanced to its current state without the imaging capabilities afforded by electron microscopy. 108,111 SEM is frequently used for sample imaging and morphological analysis of nuclear materials 2,5,44,115−118 and does not usually require destructive sample preparation. In many cases, imaging and elemental analysis can also be combined for a given instrument, enabling detailed analysis of the sample on the scales of nanometers to micrometers; this is generally achieved using electron-dispersive X-ray spectroscopy (EDX) coupled to SEM (SEM-EDX).…”

“…For surface imaging of small samples, scanning electron microscopy (SEM) is one of the most powerful techniques available. This is largely due to the excellent spatial resolution attainable using SEM, which can be on the order of 1 nm. , Additionally, electron microscopy has been continuously developed as a seminal technique for nanomaterials research throughout the last 80 years, ,, leading to an extraordinary diversity of applications for this technique. In addition to conventional imaging of inorganic samples, SEM has been used by chemists for in situ reaction studies, environmental monitoring, and behavior of materials in cryogenic environments, highlighting the versatility of SEM across a wide range of conditions and samples.…”

“…In addition to conventional imaging of inorganic samples, SEM has been used by chemists for in situ reaction studies, environmental monitoring, and behavior of materials in cryogenic environments, highlighting the versatility of SEM across a wide range of conditions and samples. Faced by the diffraction limit of visible light, which has only been conditionally overcome by groundbreaking chemistry within the last 25 years, , it is doubtful that materials chemistry could have advanced to its current state without the imaging capabilities afforded by electron microscopy. , …”