sulfonylureas
发表于 2025-3-21 16:37:02
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大雨
发表于 2025-3-21 23:33:36
ESCA in Polymer Spectroscopyis used in order to detach electrons from the sample, the kinetic energy of the electrons being measured by means of an electron analyser. The difference in energy between the exciting photons of frequency . and the electrons detached (..) is equal to the binding energy of the electron.
CHIP
发表于 2025-3-22 03:55:12
Absorption Spectroscopy in the Ultraviolet and Visible Regionsd in vacuum and since the laboratory radiation sources are weak. Only very few solvents are transparent in the fUV. Polymers therefore have to be measured in the form of thin films and mostly show intense, structureless absorption bands (1–4) which become narrower and partly structured at low temper
恭维
发表于 2025-3-22 08:29:04
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languor
发表于 2025-3-22 09:26:38
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业余爱好者
发表于 2025-3-22 12:53:17
Principles of Spin-Resonance Spectroscopydue to true resonance absorption or emission of electromagnetic radiation, albeit under the additional action of external (laboratory) or internal (molecular) magnetic fields. Continuing the nonmagnetic absorption spectroscopy beyond the fIR into the microwave region would lead to the relaxation spe
Nomogram
发表于 2025-3-22 18:20:30
Electron-Spin-Resonance (ESR) Spectroscopy of Polymersised by an angular momentum, the “spin”, which is connected with a magnetic moment (Chap. 8). This magnetic moment is influenced by external magnetic fields in such a way that two orientations of different energy are formed .
Comprise
发表于 2025-3-23 00:11:25
Nuclear Magnetic Resonance (NMR) Spectroscopy of Polymersuency is therefore much smaller and can be found in the range of radio frequencies (corresponding to wavelengths of 1 to 10m).. As discussed in Chap. 8, the main reason for this behaviour is the weakness of nuclear magnetic moments. Table 10.1 shows a list of nuclei frequently encountered in polymer
骨
发表于 2025-3-23 03:37:53
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ICLE
发表于 2025-3-23 05:53:14
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