STEM = scanning transmission electron

Method abbreviations SEC, size exclusion chromatography EM, electron microscopy STEM, scanning transmission electron microscopy AUC, analytical ultracentrifugation Equil., sedimentation equilibrium Sed. vel., sedimentation velocity LS, light scattering. 

It was also observed that ACP transforms not only on contact with SBF-H (Table 7.8) but also during exposure to the electron beam used for imaging in the STEM (Scanning transmission electron microscope) (Heimann and Wirth, 2006) as well as by postspraying treatment with a C02 laser beam (Ranz et al., 1998). The former happens only in those areas of the ACP containing substantial amounts of protons that appear to act as a driving force of the crystallisation... 

Figure 17.3.2 Detection limits, sampling depth, and spot size for several surface spectroscopic techniques. XRP (x-ray fluorescence) EMP (electron microprobe) EEL (electron energy loss), SAM (scanning Auger microprobe) STEM (scanning transmission electron microscopy). Other abbreviations in Figure 17.3.1. This figure is meant to provide a graphic summary of the relative capabilities of different methods modem instmments have somewhat better quantitative performance characteristics than the 1986 values given here. [From A. J. Bard, Integrated Chemical Systems, Wiley, New York, 1994, pp. 103, with permission adapted from Texas Instmments Materials Characterizations Capabilities, Texas Instmments, Richardson, TX, 1986, with permission.]...

STEM Scanning transmission electron microscopy. See Electron Microscopy. 

Wash-coat separated from the cordierite monolith by scraping was examined directly by two electron microscopy techniques CTEM (Conventional Transmission Electron Microscopy) and STEM (Scanning Transmission Electron Microscopy). 

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