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Trang 197
The nitro group absorption is represented by strong antisymmetric ( 1560 cm- ' ) and symmetric ( 1350 cm- ' ) stretching vibration bands . The absorption band at 1400 cm- ' corresponds to NH vibrations . Fig . 3.
The nitro group absorption is represented by strong antisymmetric ( 1560 cm- ' ) and symmetric ( 1350 cm- ' ) stretching vibration bands . The absorption band at 1400 cm- ' corresponds to NH vibrations . Fig . 3.
Trang 286
There are bands due to the Figure 2 shows thermal for vibrations of carbonate groups : a strong band appearing Ca9.9 ( PO4 ) 6 ( CO3 ) 0.4 ( OH ) • z collagen · xH20 . The DTA as a doublet at 1420 and 1450 cm- !, characteristic of curve ...
There are bands due to the Figure 2 shows thermal for vibrations of carbonate groups : a strong band appearing Ca9.9 ( PO4 ) 6 ( CO3 ) 0.4 ( OH ) • z collagen · xH20 . The DTA as a doublet at 1420 and 1450 cm- !, characteristic of curve ...
Trang 475
Therefore , it appears likely that the bands sponding to the bending vibrations of the fluoroniobate observed at 400 to 700 and 200 to 300 cm - 1 are due to ion . The spectra under considerations exhibit three stretching and bending ...
Therefore , it appears likely that the bands sponding to the bending vibrations of the fluoroniobate observed at 400 to 700 and 200 to 300 cm - 1 are due to ion . The spectra under considerations exhibit three stretching and bending ...
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