Spectroscopic imaging comparison

The Scanning Tunneling Microscope has demonstrated unique capabilities for the examination of electrode topography, the vibrational spectroscopic imaging of surface adsorbed species, and the high resolution electrochemical modification of conductive surfaces. Here we discuss recent progress in electrochemical STM. Included are a comparison of STM with other ex situ and in situ surface analytic techniques, a discussion of relevant STM design considerations, and a semi-quantitative examination of faradaic current contributions for STM at solution-covered surfaces. Applications of STM to the ex situ and in situ study of electrode surfaces are presented. 

J. Weis, H. Ahlstrom, P. PQavcak, M. Haggman, F. Ortiz-Nieto, A. Bergman, Two-dimensional spectroscopic imaging for pre-treatment evaluation of prostate cancer Comparison with the step-section history after radical prostatectomy, Magn. Reson. Imaging 27 (2009) 87. 

Near-infrared chemical imaging using multichannel detectors inherits many of the attributes of conventional NIR spectroscopy using a single-channel detector. In addition to its well-documented capabilities as a spectroscopic technique, in comparison to other vibrational imaging approaches, it has unparalleled flexibility in terms of managing widely varying sample size, placement, shape and color. As has been shown with the three examples presented in this chapter, the technique easily... 

There are a number of possible methods for the instrumental testing of meat quality comparisons of these methods with NMR have been published.292-296 Imaging methods continue to be extensively favoured in meat science and have recently been reviewed, together with spectroscopic methods.297 MRI has been used to estimate the mass of muscle in chickens in v/vo298 and more generally to image fat and muscle distribution.299... 

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