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Transmission FTIR Imaging

Similar to the transmission measurement, samples can be measured using the microscope or the large sample compartment in ATR mode. The large sample compartment is [Pg.123]

Fig. 2 Transmission FTIR images showing the distribution of LDPE in the films with the thickness of A 3 pm and B 20 pm... Fig. 2 Transmission FTIR images showing the distribution of LDPE in the films with the thickness of A 3 pm and B 20 pm...
It is clear that the spatial resolution (the separation between the two points required for them to be resolved, i.e. 2r) is not merely dividing the number of detector pixels by the width of the image. The spatial resolution in transmission FTIR imaging should be in the order of 10-30 pm depending on the wavelength of the absorption band used. [Pg.11]

Fig. 10.2 Transmission FTIR images (266 x266 pm ) of cross-sections of PET film. The images are based on the distribution of the integrated absorbance of the band at 1340 cm after exposure to supercritical CO2 for 15, 20 and 30 min (from left to right at 40 °C and 100 bar. Fig. 10.2 Transmission FTIR images (266 x266 pm ) of cross-sections of PET film. The images are based on the distribution of the integrated absorbance of the band at 1340 cm after exposure to supercritical CO2 for 15, 20 and 30 min (from left to right at 40 °C and 100 bar.
Figure 7.2 Transmission FTIR images of PA, silicone oil, and PTFE in the pol)rmer blend. Image size is 266 x 266 pm. (a) Visible image of the polymer blend. FTIR images created by integrating, (b) the polyamide band between 1677 and 1597 cm", (c) the silicone oil band between 1290 and 1240 cm , and (d) the PTFE band between 1174 and 1122 cm . Red regions represent a high concentration, while blue regions represent a low concentration. (See eBooks for color version of this figure). Figure 7.2 Transmission FTIR images of PA, silicone oil, and PTFE in the pol)rmer blend. Image size is 266 x 266 pm. (a) Visible image of the polymer blend. FTIR images created by integrating, (b) the polyamide band between 1677 and 1597 cm", (c) the silicone oil band between 1290 and 1240 cm , and (d) the PTFE band between 1174 and 1122 cm . Red regions represent a high concentration, while blue regions represent a low concentration. (See eBooks for color version of this figure).
Figure 7.7 Transmission FTIR image of a USAF spatial resolution target (a) without lens (imaging size of 341 pm X 341 pm) and (b) with lens (imaging size of 240 pm x 240 pm). Chan and Kazarian [12]. Reproduced with permission of the American Chemical Society. See color plate section for the color representation of this figure.)... Figure 7.7 Transmission FTIR image of a USAF spatial resolution target (a) without lens (imaging size of 341 pm X 341 pm) and (b) with lens (imaging size of 240 pm x 240 pm). Chan and Kazarian [12]. Reproduced with permission of the American Chemical Society. See color plate section for the color representation of this figure.)...
Figure 12 IR transmission images of a polymer laminate. Left video image. Right IR image of the amide band (bright high COPA concentration). Only the COPA layers are visible in the FTIR image. The horizontal features in the middle layer are holes, originating during microtoming due to the material s softness. Figure 12 IR transmission images of a polymer laminate. Left video image. Right IR image of the amide band (bright high COPA concentration). Only the COPA layers are visible in the FTIR image. The horizontal features in the middle layer are holes, originating during microtoming due to the material s softness.
Similar to conventional FTIR measurements, FTIR imaging with FPA detector can be operated in transmission or ATR mode. [Pg.10]

Figure 10.19 FTIR imaging system. Left, an optical pathway in an IR microscope associated with a spectrometer. The sample can he examined in transmission (left), or in specular reflection modes (right). This accessory is installed in a spectrometer whose beam is deflected. The Cassegrain optic has the advantage that the light is reflected at the surface of mirrors rather than having to pass through optical lenses. Right, model 400 UMA (reproduced courtesy of Varian Inc. USA). Figure 10.19 FTIR imaging system. Left, an optical pathway in an IR microscope associated with a spectrometer. The sample can he examined in transmission (left), or in specular reflection modes (right). This accessory is installed in a spectrometer whose beam is deflected. The Cassegrain optic has the advantage that the light is reflected at the surface of mirrors rather than having to pass through optical lenses. Right, model 400 UMA (reproduced courtesy of Varian Inc. USA).
Shelton, CT, www.perkinehner.com). Samples can be measured in reflectance mode or transmission mode. Sohd samples such as biological tissues may need to be sliced into thin sections for transmission analysis. FTIR imaging can be performed on a wide variety of sample matrices, including polymers, pharmaceutical tablets, fibers, and coatings. [Pg.307]

In this chapter, we introduce the principles of the FTIR imaging method and some of the recent applications of FTIR imaging in the study of polymeric materials. This includes an introduction to the general approach of FTIR image acquisition, the transmission and attenuated total reflection (ATR) modes of measurement, the different approaches of measuring liquid and solid samples, the considerations needed to be taken in order to obtain a reliable and accurate imaging measurement and also some of the new opportunities that exist for FTIR imaging. [Pg.118]

FTIR transmission images compared with SEM images 538... [Pg.527]

Figure 5 FTIR transmission image of a PA/PTFE blend (left) and SEM image from the same area (right). PTFE distribution was calculated from the 1,210 cm 1 C-F absorption (intensity cf. color scale in the middle). The arrow indicates from where on the image the IR spectrum was extracted. The orange ovals show identical PTFE clusters as detected by FTIR and SEM, respectively. (See Color Plate Section at the end of this book.)... Figure 5 FTIR transmission image of a PA/PTFE blend (left) and SEM image from the same area (right). PTFE distribution was calculated from the 1,210 cm 1 C-F absorption (intensity cf. color scale in the middle). The arrow indicates from where on the image the IR spectrum was extracted. The orange ovals show identical PTFE clusters as detected by FTIR and SEM, respectively. (See Color Plate Section at the end of this book.)...
The EVA and co-polyamide (COPA) layers are resolved quite well by FTIR transmission imaging (Figure 12), but the 5 pm linear low-density polyethylene/ maleic anhydride grafted (LLDPE-MAH) layers cannot be detected in this mode. [Pg.545]

See other pages where Transmission FTIR Imaging is mentioned: [Pg.12]    [Pg.19]    [Pg.123]    [Pg.123]    [Pg.12]    [Pg.19]    [Pg.123]    [Pg.123]    [Pg.536]    [Pg.424]    [Pg.116]    [Pg.120]    [Pg.9]    [Pg.9]    [Pg.10]    [Pg.10]    [Pg.13]    [Pg.91]    [Pg.284]    [Pg.340]    [Pg.527]    [Pg.528]    [Pg.571]    [Pg.178]    [Pg.443]    [Pg.125]    [Pg.126]    [Pg.535]    [Pg.539]    [Pg.223]    [Pg.144]    [Pg.9]    [Pg.121]    [Pg.211]    [Pg.362]    [Pg.140]    [Pg.236]    [Pg.143]   


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FTIR imaging

Image transmission

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