Open AccessTHE VIBRATIONAL MODES OF A MACROMOLECULAR ADSORBATE INVESTIGATED BY PHOTOACOUSTIC SPECTROSCOPY
Author(s) -
Wu Ming-Chen,
Yuan Du-Ping,
Zhu Ang-Ru,
Houfang Lu,
Yu Li-Ming,
Zhaoyong Wang
Publication year - 1987
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.36.270
Subject(s) - adsorption , materials science , macromolecule , crystallite , spectroscopy , molecular vibration , photoacoustic imaging in biomedicine , surface (topology) , full width at half maximum , analytical chemistry (journal) , molecular physics , atomic physics , optics , chemistry , optoelectronics , physics , raman spectroscopy , organic chemistry , biochemistry , quantum mechanics , metallurgy , geometry , mathematics
Under UHV condition, the C-O stretching mode properties of diacetate cellulous (C2H8O3-(COOCH3)2) adsorbed on polycrystalline Ag surface were studied by using PAS. The peakpo-sitions, and the peak shifts and FWHM's, of the vibrational mode at different adsorbate coverages and different temperatures were demonstrated. Some features of adsorption of macromolecules on metal are discussed. The results also show that our facilities has the satisfactory sentivities for surface submonolayer detection.