Analyte
Solid and liquid macro- and low-molecular substances, polymer dispersions, solutions, layers on
substrates
Equipment
- Device: UV-VIS-NIR double-beam spectrometer Lambda 19 (Perkin-Elmer), PC-controlled
- Wave number area: 200nm - 3200nm
- Scan speed: 0.9nm/min - 960nm/min
- Accessories: solid sample holder with adjustable incident angle (0° - 60°), cuvettes, polarizer, reflection units for solid (6°) and variable incident angle (15° - 70°)
- Sample sizes (without the use of masks): solid samples/transmission: min. ca. 8mm x 20mm, solid samples/reflection: unit with stable angle, min. 20mm x 20mm / max. 100m x 100mm, unit with variable angle, min. 25mm x 25mm / max. 55mm x 55mm
Analysis methods and response values
Measuring of transmission and reflection spectra
Aim
Aim
- Determining the position and intensity of absorption bands and their changes due to chemical and/or physical processes
- Investigations concerning the light-induced decomposition of substances
- Characterization of solutions
- Determination of absorbance indices
- Examination of the absorption properties of dyes and other additives
Application examples
Contact
Dr.Andreas Büchtemann
Research devision
Functional Polymer Systems
phone +49 (0) 331/ 568-1918 oder 1900
fax +49 (0) 331/ 568-3915
email buechte@iap.fraunhofer.de
Research devision
Functional Polymer Systems
phone +49 (0) 331/ 568-1918 oder 1900
fax +49 (0) 331/ 568-3915
email buechte@iap.fraunhofer.de
Comparative and additional methods